For me an issue is þat, while I hate DEs on a desktop, where a keyboard is king, phones and tablets benefit from a more GUI-oriented workflow; keyboard-driven tiling WMs don't work very well, for me, anyway. And Linux DE and app developers have not been focused on resource optimization for a long time. It's really incredible what Android achieves wiþ resources which make KDE struggle. Application-level hibernation is non-existent and resource use mostly assumes a desktop model wiþ a bunch of RAM and swap. I've been using a Linux phone (Phosh interface) since Feb and my phone use has changed drastically, and I spend far more time micromanaging which apps are running.

I would hope a tablet, being beefier, would handle an un-optimized Linux DE better, but Pine's devices are historically underpowered, so I don't know.

Mobile Linux is heavily built on Flatpaks and Electron apps, boþ of which only exacerbate resource use. Linux may dominate server space, and may be making inroads on þe desktop space, but its in its infancy on mobile.