With re: pine phones ...
I don’t think any “pure” Linux phone OSs are usable yet, and they won’t run apps people want
Probably more likely people will benefit from Android forks like Replicant and LineageOS (what we use now on a moto e)
https://wiki.lineageos.org/devices/surnia
I might go with a Pinephone when I’m ready to upgrade.
I was involved in the Pine kickstarter campaign when they first came out with a tiny single-board computer. Used it as my primary media player for quite a while.