The tax authority in my country already uses a proprietary protocol and client

https://de.m.wikipedia.org/wiki/Elster_(Software)

Doesn’t work. It’s possible to let many banking apps think they are running on a normal device although it is rooted.

Just don’t use the services that do this

Yes, why has no one tried that before, 😂

Harry Potter war seiner Zeit voraus

Maximum recursion depth exceeded error

OP being smug also increases the reach of the post by a lot compared to a dry post about solidarity.

I buy third party ink cartridges for my HP. No issue.