Right, but that's something else. Can't you switch between those 3-4 banks though? That's what I though was possible more or less all over the world.

If you are not a citizen, but an immigrant, it could be very true in some parts of the world.

I have a living permit and legal status in the country I live in, but only few banks open accounts to people like me, most just deny anyone but citizens of the country.

The ones that open all work in GrapheneOS though, so not big deal for me in my particular case.