This is the problem start because lots of newbies really think that exchange are much convenient to use rather than using non custodial wallets. They are engaging with possible huge risk, since if we look at those past incident and the current one. Those situation indicates that exchange are not really the best platform to use in terms of safe keeping their Bitcoins.
Each market cycle, each market bull run, there will be many newbies join this market and very first places they start are centralized exchanges. On those platforms, they will have access to only custodial wallets, public address for receiving their deposits or from someone else, but they don't have access to private keys, don't own private keys.
Warnings are abundant, more than enough, for newbies, it's only their responsibility to do enough searching and reading carefully.
Like this warning since FTX and Terra crashes.
Reminder: do not keep your money in online accountsAbout four years later, we return to this similar warning after BitMEX and BitMart shutdowns.