My bank had a device that was basically a simple android phone running the 2fa app. The phone app got updated through new versions and eventually got the drm treatment, but the old app keeps working because it is still running on those dedicated 2fa "devices".
Naturally the bank is now trying their best to make people deregister the old "devices" and switch to only the "app".

The old app has no internet permissions. It reads qr from the camera and shows verification as a 6 digit code.
The new app has internet permissions and is integrated with other apps so you can conveniently accept the request of your banking app in the 2fa app (on the same phone) with a single tap via an overlay. 2fa.

Pay a fee of 0.30€ to receive the otp via SMS every time they want to login without the proprietary otp app and 0.30€ for each payment to authorize

They physically go there in person.

That’s still a thing.