NetworkManager: major hotspot regression, routing messed up half the time(?), or sometimes hotspot just turns off
There seems to have been a major regression in NetworkManager as shipped with postmarketOS 22.12 which makes wifi hotspots with routing over the LTE modem hardly usable: when enabling the hotspot, half the time the routing seems to be messed up with connectivity on the phone itself (where I run postmarketOS/Alpine and NetworkManager set up the hotspot) completely fine to the entire internet, while the wifi guest (which runs Fedora) suddenly can only reach the phone and pinging any internet host gives "Destination Host Unreachable". Some restarting dance of phone and NetworkManager then at some point fixes it. I've also had the hotspot enabled, again the same problem as above, but then suddenly the hotspot just disables itself again. Before this regression everything worked fine every time, and I use hotspots daily and heavily.
Broken NetworkManager version: 1.40.8
Working NetworkManager version: whatever shipped in postmarketOS 22.06