It's strange that you refuse to store bitcoins on a hardware wallet because it's the most secure solution we have today, hardware wallets are not so expensive that you hesitate to own them. It shouldn't be a problem for you to store them using Trustwallet but for extra security I still recommend using a hardware wallet, it's more secure than all the software wallets out there.
It's similar I leave my coins on FTX for a year, never had any problem until CZ make a drama and FTX bankrupt.
You are blaming CZ for FTX problem, if you want to blame then I think you should blame SBF, because if he has no problem or not at fault no one can retort or blame him.