This sounds like a dumb question but after seeing what happens with FTX i really worried about any centralized company i am using for my crypto. Trust multi wallet is really a decentralized wallet?
Trust wallet runs using centralized servers so it's not really decentralized, and it is closed source software supported from centralized exchange.
This is hot wallet so I wouldn't use it for storing anything more than pocket money, and I am sure everything you do will be reported to Binance and some Chinese agency.
I am using a multi wallet in trust wallet that has BTC, ETH, BNB, dot and most other blockchain which i can access through one mnemonic phase. So if something happens with trust wallet company and their apps become inaccessible then how i will be able to retrieve my btc,dot and other blockchain assets by using that one multi wallet mnemonic phase?
I would never trust this wallet with anything but you should be fine, unless you import your seed words in some phishing website, or store them in some cloud aka other people computers.
I something happens with their servers and they shut down, you should import seed words in other wallets that use same BIP format.
However, some problems may occur with different addresses and derivation paths.