It's what I did when my bank app stopped working with my custom ROM and Oneplus's final update to the phone made the stock ROM unbearable. At that point - might as well have the convenience of iOS (also I did like that it used the full screen on Carplay whereas Android Auto was limited to 2/3 of the screen and the rest was an Android Auto logo).
That said, Linux phones support seems to be getting pretty good on Fairphones which is great because it used to be that you'd have to have an old phone to have any real Linux support (like my Oneplus 7 pro was too new, whereas the 6/6T are supported by PMOS and Ubuntu)
Android was just in a place of "it's not freer enough over iOS to be worth it anymore" for me and still is.
Also I do run hacked YouTube now on iOS as well, which was literally the biggest thing I missed from my Android days lol, ad-free YouTube without paying.