In the Netherlands we have a system called DigiD to login into to most government websites like your taxes and city, etc.
When I contracted for the city of Amsterdam I learned they’ve been pushing hard for the DigiD app to two factor authenticate instead of text message, because of contracts Digid charges a lot per text message validation and none for app.
I would also use Yubikey for banking, but I am scared as f. what happens if I lose it while traveling abroad.