Most parts work, still not sure why Bluetooth gives me errors in dmesg, audio out works, microphone input not yet... I'm getting there.
But graphics, charging, low standby power consumption, LTE, wifi... those all work already.
The fact that postmarketOS has support and also that there are people working on mainline support, makes this a task that is not as difficult as I thought, as most work was already done for another distro.
Otherwise it runs more fluid than Android ever did on it and it has a great standby time (forgot to turn it off at around 80 % and a few days later it was at 58 %).
For now stuck on merging the Kernel patches from the sdm670-mainline project with those from Mobian, not really something I can do without knowing C. I just hope someone with the right skills does it at some point.
Then I just need to make some smaller merge requests, like one to add a udev rule for vibration support and so on.
Not much missing before I can finally use it as a daily driver.
Very much not. GNOME Shell Mobile was funded by the German Prototype Fund in 2022 IIRC, way later than Phosh was created (funded by Purism for their Librem 5). GNOME Shell Mobile will eventually be part of GNOME proper (meaning it's Mutter, and GNOME Shell, patched to work on small devices), currently it's a patch set on top of multiple GNOME components that's packaged in postmarketOS and the AUR (if you consider AUR stuff packaged).
Phosh was created on based on wlroots (which is also used in Sway and other wayland-native window managers) and GTK3, as a Mobile Shell. Ironically, this way was pursued because Purism developers where told by the GNOME Shell people that an adaptation of GNOME Shell for Mobile would not be feasible.
Both rely on designs created by (at least then) Purism-employed designer Tobias Bernard IIRC, and thus may seem quite similar despite being based on a different tech stack, and both are hosted on GNOME's Gitlab, using all the same apps.