I just want to mention that it's a lot easier to replace and swap parts in a PC than on a phone or tablet. Mobile devices are unmodular solutions that one can't

I just want to mention that it's a lot easier to replace and swap parts in a PC than on a phone or tablet. Mobile devices are unmodular solutions that one can't swap out for 'newer parts', the way desktops, and to some extent laptops are. I would also like to mention that Android integration is a bit poorly designed, IMO. If a hardware manufacturer writes drivers for Windows, those drivers are still likely to work as Windows itself matures with newer releases. However, with Android, each new release of its OS leaves dozens of models behind on a previous release. Couldn't Android have designed their OS to be a bit more... upgrade-friendly?