Strike is actually quite good and sending to the wallet also works well. It just takes a while because it's free.
Only Commerzbank did not like repayments via Strike because it is processed via Poland. I got a call about suspected money laundering and because Strike is on their list.
@stefan_21 were several payments of €2500 each. We then made a note of it and nothing more has come in so far. They only noted that Strike should be treated with caution as there are problems with payments.
However, Commerzbank itself offers the purchase and custody of crypto for large customers -.