There are a gazillion non-iOS devices that work perfectly fine in the real world. I do my banking, bookkeeping, everything with regular end-user software on my non-Apple devices, and so do a lot of people in my extended family and friend groups, believe it or not.
You should seriously reconsider how much you believe Apple has a monopoly on usable personal computing.
That's great. Why can't people be satisfied with those devices and use them then? Why enforce your style of computing onto other people's devices?
Instead of nerfing Apple and ruining a good thing, why can't open source loving hackers try to improve Linux and Android (non-Google) instead, to make people want to use and pay for those systems and devices? It worked with servers for Linux. More competition and more better products is better for everybody, not trying to ruin Apple systems for consumers because of jealousy.
I'm not the European Union. It's not my personal jealousy and distaste for Apple that's the driving force of the EU legislating against Apple's practices.
You should seriously reconsider how much you believe Apple has a monopoly on usable personal computing.