It’s unfortunate that sweden decided to lock 2FA behind proprietary smartphone apps.

For every country its going to be a different story. I think instead of trying to build an app ecosystem for things like bank apps on linux it would be easier for citizens of those countries to convince the government / banks to allow other 2FA methods like OTPs that can work on any a device using an OTP client. That would honestly benefit more people as whole since they wouldn’t be lock down to just Android/Apple or even owning a smartphone. They could do all their important government/finance stuff just with a computer.