but I like the convenience of being stored in exchanges so I can quickly sell off parts of my investments.
Each to their own i guess. Your keys, your coins, and you can store it anywhere you like. You say you do not care about losing your BTC's, and i am surprised why you say so, because nobody wants to lose money.
The reason why users here would still say say not your keys, not your coins and tell you that you shouldn't store your coins in an exchange, even if you have said you do not care, is because of newbies reading this topic. Like me, i would never recommend an exchange as a wallet for storing coins, only self custodial and open source wallets should be used to store BTC, examples are Electrum, BlueWallet and Sparrow wallet.
To each their own, yes, but people can only say that until they lost everything. Words are cheap. I understand if one is keeping a little amount in an exchange for easy and quick trade whenever necessary, but if you're keeping everything there and you say you don't care, I highly doubt it. Unless it's an amount that's too small that you won't be losing a second of sleep if it's lost, you sure care about losing your precious and hard-earned Bitcoin.
But if the intention is to be able to "quickly sell off parts of my investments", why keep everything on an exchange? Keep that part you intend to quickly sell if the price target is hit and keep the rest in a non-custodial open-source wallet. You don't have to buy a hardware wallet if you don't like it. You actually don't have to spend to safekeep your money.