I don't know what anonymity capabilities Ethereum has, but I feel like you could simplify your process by buying the ETH directly and then running that through some kind of mixer.
If it is ethereum that he wants, he can do as bitcoin users use to do by converting the bitcoin to monero and convert the monero back to bitcoin. I think that is also a good idea. But if the OP does it directly and not convert to any coins first, that is also good but that would be if he used a non KYC exchange or a decentralized exchange. 
Topic: Anonymizing BTC - page 2. (Read 313 times)
What are the potential weaknesses in this approach, and are there any alternative methods that could provide better anonymity?
Retrospectively, purchasing ETH directly would have been the better option for privacy. You bought with cash, so I'm assuming that was done through an ATM machine. Using a anonymous swap exchange will be the best option now for privacy, you can skip the process of sending to the relatively unknown wallet.And should I send the entire amount at each step, or break it into smaller amounts?
Breaking a transaction into multiple bits is done more for security than privacy and helps when mixing coins, so as not to get out he exact amount you sent for mixing 
Sending conjoined 0.5 BTC from Ginger wallet to a non-KYC CEX (e.g., Margex or Bybit)
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When a beginner appears and mentions some CEX that no one has heard of before, it looks rather suspicious to me - especially if that same CEX obviously has similar tactics as freewallet, which freezes the user's funds and then requires an insane KYC procedure. In any case, the OP has strange ideas, and if he's legitimate, I hope he doesn't lose all that money with some wrong move.
I would like to anonymize 0.5 BTC that I purchased and convert it to ETH and trade on DEX
I don't know what anonymity capabilities Ethereum has, but I feel like you could simplify your process by buying the ETH directly and then running that through some kind of mixer.
Bybit is no longer a non KYC exchange.
This is my first thought upon reading his example. Although it could just be an example but maybe it helped that everyone told him that Bybit is no longer a CEX.And, if you OP is going to send coinjoined/mixed BTC to these exchanges, you should be ready for consequences.
Withdrawing ETH to Trust Wallet
Why not use Metamask instead? 
Sending conjoined 0.5 BTC from Ginger wallet to a non-KYC CEX (e.g., Margex or Bybit)
Trading 0.5 BTC for ETH on the CEX
Bybit makes KYC mandatory. I am using MEXC . The current minimum withdrawal on MEXC is crypto amount worth 10 BTC. You can use it instead of using Bybit. I do not know about an exchange called Margex but I can recommend you MEXC. Or you can use instant exchange that allows Tor and VPN like exch.cxTrading 0.5 BTC for ETH on the CEX
Withdrawing ETH to Trust Wallet
Trustway is not open source at all, it is a close source wallet. You can give wallet like Unstoppable wallet a try. It is an open source wallet and I can recommend it.You do not necessary need to convert your bitcoin to ethereum before you achieve your goal, you can withdraw bitcoin later instead
You can use eXch to exchange BTC to ETH without any KYC. You can also do it through Trust Wallet, which uses the decentralized cross-chain DEX THORChain. I believe Trust Wallet is not open source so you might want to use Cake Wallet instead, it also uses the same DEX. Swapping BTC to ETH will be cheaper on eXch because it is centralized, so that is one tradeoff to consider.
Your mistake is send the Coinjoined coins to CEX, it's not even non-KYC CEX because Bybit already force all users to submit KYC. I don't really know with Margex, it's not a popular CEX and risky to use.
Don't link your coins to CEX, instead use no KYC P2P exchanges like Bisq, Robosats, etc.
It's up to you whether you want to use CoinJoin, mixer or trade it to Monero.
Using Electrum with VPN at all times aren't make you anonymous, VPN could be a honey pot, it's recommended if you use Bitcoin Core and run full node using Tor.
Don't link your coins to CEX, instead use no KYC P2P exchanges like Bisq, Robosats, etc.
It's up to you whether you want to use CoinJoin, mixer or trade it to Monero.
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Using Electrum with VPN at all times aren't make you anonymous, VPN could be a honey pot, it's recommended if you use Bitcoin Core and run full node using Tor.
Bybit is no longer a non KYC exchange. I don't believe I have heard of margex before. An alternative to that would be to use exch exchange and trade to either ETH as you're planning to, or to XMR which is a better option for annonymity
I would like to anonymize 0.5 BTC that I purchased and convert it to ETH and trade on DEX
I purchased 0.5 BTC with cash and sent it to an Electrum wallet address.
The PC with Electrum is connected to a VPN at all times.
Here are the steps I'm planning:
Sending 0.5 BTC from Electrum to Ginger wallet and conjoining
Sending conjoined 0.5 BTC from Ginger wallet to a non-KYC CEX (e.g., Margex or Bybit)
Trading 0.5 BTC for ETH on the CEX
Withdrawing ETH to Trust Wallet
What are the potential weaknesses in this approach, and are there any alternative methods that could provide better anonymity?
And should I send the entire amount at each step, or break it into smaller amounts?
I purchased 0.5 BTC with cash and sent it to an Electrum wallet address.
The PC with Electrum is connected to a VPN at all times.
Here are the steps I'm planning:
Sending 0.5 BTC from Electrum to Ginger wallet and conjoining
Sending conjoined 0.5 BTC from Ginger wallet to a non-KYC CEX (e.g., Margex or Bybit)
Trading 0.5 BTC for ETH on the CEX
Withdrawing ETH to Trust Wallet
What are the potential weaknesses in this approach, and are there any alternative methods that could provide better anonymity?
And should I send the entire amount at each step, or break it into smaller amounts?
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