The problem with most banks in the UK is they'll usually lock or even cancel your account if you're dealing with Crypto. Monzo is well known for doing it (Google "Monzo closed account bitcoin").

Barclays is one of the only banks slowly accepting Crypto related transactions.

Most people I know dealing with Crypto are using Revolut as they are not a proper bank. However, they recently blocked transactions to Coinbase's account (this is most likely because they are applying for a UK banking license).