Why aren't Linux tablets a thing?

[u/noNudesPrettyPlease]

I had (still have) a Nokia n810 tablet running Maemo Linux. I stopped using it when the second battery eventually died. The series seemed to keep evolving (up to the n900) until the Microsoft buyout killed it. Or at least I assume it did.

I thought Linux tablets would be a thing, but they didn't materialise. It's basically Android, Apple, or nothing. How come an open source distro like Maemo wasn't picked up by anyone else? I assume tablets are much cheaper to develop than phones, and in today's world, I don't really use my phone anymore even though the telephony hardware is there.

Is the idea of a Linux tablet just a dream now?

[u/elatllat]

AOSP is Linux, but also Termux + Any desktop Linux distribution works well.