Questions for UK-based people: which exchange(s) do you use?

I just read somewhere that KuCoin doesn't offer services anymore to UK residents. Is this true? I am curious to know which exchanges can be used without many problems in the UK specifically. I am holding my crypto mainly in self-custody wallets at the moment. I used to use KuCoin and it was always my intention to kyc there eventually. Some of the cryptocurrencies I am holding I bought specifically there, and are not offered by many exchanges. So for me to be able to sell eventually, I do need to be able to make a deposit to an exchange that accepts those specific cryptos to then sell. That becomes a whole of a lot more complicated if various exchanges stop offering services to UK residents.