I almost exclusively use the browser as well. I think the reason for that is simply because the software landscape is that bad. I hate the Playstore or Apple Store with a burning passion. They are all adware/malware nightmares that aren't worth the effort, never mind developing for them.

We have really interesting and good hardware, but it is all moot because the software landscape is plain hell. I really puts me off to ever use a Apple or Google platform.

I would immediately jump to x86 regardless of power consumption. Would probably still run better than my current phone with a sizeable battery because 95% of CPU time is crappy routine you didn't even want running, so that is a software problem as well.

With the power usage of screens, I doubt an x86 processor would be noticeably worse.

Sorry for the rant, but I don't understand how anyone could react differently if they hear the word Android or iOS. Why did we end up with this crap?