A very good point about not keeping your assets in exchange it is safer when your assets are in your care and remember not your keys, not your coin, that is where plenty of people are getting it wrong, once any exchange decides to foldup then a lot of people will be left with nothing and you have to abide by these policies if you want to use their service efficiently, and holding bitcoin gives you that assurance of your assets not going anywhere, during the bear, not all coins survived it but despite everything, bitcoin is still standing strong what happened with FTX should be a lesson to many.
Taking responsibility for the safety of your coins is also not easy, most prefer to rely on the exchange, or if you take the traditional bank model, but in the end this is not the best solution, because multiple examples show us how everything can change in one day and the exchange simply closes access to your account.
Therefore, everyone who understands these risks and is ready to independently be responsible for their investments will always win. This is not as difficult as it may seem, it is not worth risking your money and keep it somewhere on exchange.
Yeah, we can't always trust CEX to keep our funds safe since there are lots of hacks for CEX in crypto history and not every exchange in crypto industries has terms that our funds are backed by the exchange 100%. So holding our funds in a hardware wallet is always the best option or if we don't have money to buy a hardware wallet we can always use wallets like metamask and others to keep our funds as long as we don't get tricked by scammers.