I look at Bitmart handles and it seems that some people are getting their withdrawals that were requested some past weeks. It seems they are getting the pressure and they are afraid of jail too. The way FTX exited and run away with customers money, the judgement and 20 years jail that he served will come to them too because if you can't learn from a person that did bad and you later do the same, it means it was even done on purpose.
I believe as long as a business is running well, it won't think of making an exit from the scene because they are already making good money from it, but if things go bad and the business starts losing customers and almost start to lose money because they have to spend more than they are earning, then they might think of making an exit like that. Some might think of the possible consequences, but some might not think about it, and think they can handle it.
You know what's so good about custodial wallet is that you can do everything within your without going outside the wallet or deposit to an exchange before you can exchange coin for another. There are some wallet that supports multi wallet, they let you have any coin you like and you can manage them with one seed phrase unlike then that you have to separate Bitcoin, Solana, monero and other EVM wallet, they are simple without need for an exchange.
Other than the fact that custodial wallets won't ask you for KYC, I don't tthink there are a lot of differences between an exchange and a custodial wallet, especially when the wallet allows you to swap your cryptocurrencies within the wallet. Those who care about their coins and prefer privacy, they would only use non-custodial wallets where they are the only ones in control of their assets.