I am using the PinePhonePro as my primary phone for over a year now. There are of course some challanges but it is definitly possible

Not on iOS and there is no way to load an icloud backup into the android app / google drive

I helped a Friend move to android a week ago and it is just a nightmare. It is just frustrating since there is not a single guide you can use. Everythin works only from android version X to Y and your phone has android Z and does not seem to get updated anymore even tough it is just one year old. And even if you have the right android Version you are unlikely to be able to follow anything step by step, since everything looks different with every manufacturer.

iOS with its walled garden ecosystem is certainly not great, but Android is just awfull and not an alternative

I would just wish there would be a new Reddit view as well. It is just so annoying having to click on the images to zoom in