I had some spare-time to between X-mas and new year’s eave and finally jumped to 17.1 with my Fairphone 2 (from LOS 16).
My setup is very simple:
- latest Lineage OS (no gapps)
- F-Droid priv. extension (OTA is the correct one? had to install the magisk module in addition as it did not work with the extension flashed via TWRP)
- Magisk - replaced Lineage SU Addon to be able to use some apps which require root
- AFWall+ as firewall is running
I also face the two issues. Mobile data does not work sometimes, sometimes it does.
I normally de-active Mobile Data when I’m at home and active WLAN. When I leave my flat I do it the other way around.
I also still have random reboots, but I already had them on LOS16 - never really investigated this, as it happens about 1-3 times per week and I somehow live with that even it is a bit annoying.
Most annoying thing with rebooting for me is, that I use Spotify (I get it via from Aurora store and it works fine without GSF) and after every reboot the external SD card on my FP2 needs some time until it is useable after the reboot. Spotify looses all the downloaded music on the sd-card and the only way to fix this is to restore the data (I use OAndBackupX to do so). Now with the additional necessary reboots I have to go through this procedure even more often :-/.