Banks are actually not different from a centralized exchange so it's weird that you are now cautious of using a cex but now more confident in storing money in your bank account. It only look like banks are more secure than any other cex it's because you can see them in the real world and most of them are already there even before but they can still be able to freeze your account for some reasons or they themselves can go bankrupt later on.
There are many banks like that, who are being reported though in the past. I hope this will now open your eyes and also to the users that will read this. Full decentralization is always the way to go.
At least I mean for storing larger assets it can be said that it will be safer if they are stored in a bank, of course with the record that the bank itself is directly supervised by the nearest government. indeed every decision will have its own risk, we just have to minimize this risk as much as possible. I myself am actually still a user with cex problems, but I myself prefer to reduce the storage of assets contained in Cex.