If you're looking for an alternative. Then there are only really 2 that I've found for the UK.
Curve, which I think is now linked to Samsung Pay. I've been using it for a couple of years (before my S22 Ultra), and it's a pretty useful option. I have most of my accounts linked to my curve card, and it allows you to use any of your other accounts via your curve card.
The other option (more reliable sometimes) is Starling, but with this option you'd have to open a new account essentially. They're an online banking option. The only issue I have with it, is that is not my main account, so in order to use it I transfer money each week from my main bank account into Starling, but if at least allows me to use Samsung pay 🙂