sorry, I think I was confusing bank transfers with credit card transactions.

There’s also the risk that credit card companies are claiming that fraud done using your phone app (for example, someone stole your unlocked phone(*)) is not covered, and you are on the hook for losses.

But stolen physical credit cards are always covered.

(*)EDIT: I thought I’d read a report that someone who had been mugged and forced to give their phone+PIN had an issue with their CC company; but it looks like this is mostly a problem with money transferred out of a bank account, not credit card purchases… and even then, hiring a lawyer will usually get the bank to pay-up.

I use several banks and several credit unions, and the only thing I can’t do with a laptop is deposit checks (which is getting pretty rare).

FinTech products like PayPal, Venmo, Cash.app, BlueBird and such often require a phone app, but aren’t regulated banks, and are best avoided when possible.