I say that cold wallets are better

All platforms can now freeze your account at any moment until you prove to them the source of your funds to the platform, and it may take from a day to a year to audit them and your account is frozen.
I believe that there are agreements and conditions imposed on the platforms, the last of which was a month ago, Binance froze accounts to verify the source of funds for many Egyptians.
This week, Coinbase also froze some American accounts and its users until they provide documents proving the sources of funds to the platform.
Therefore, in order not to fall into this cycle and your funds are frozen, and we are in peak areas and you may need to sell your currencies, it is preferable to use cold wallets to keep your funds, and when disbursing and selling, keep spending in parts on central platforms, and after you spend, it is also preferable to transfer the USDT or USDC to the wallet again.
I deal with the platforms during this period only for buying and selling, not storing on them.

The best wallets I am currently using
1- LEDGER - NGRAVE for long-term storage
2- SAFEPAL for daily and short-term uses.