If it is supposed to work, I will get it fixed. I'll figure it out soon.There is an interesting more recent addition to this issue on Gitlab by Mark Williamson: "I think this may be the same issue as #2514 (closed) , I do have restricted mobile data applied for "Google Play Services""
I had restricted mobile data for Google Play Store (not for Services!) so far.
Anyone else restricted mobile data?
Upgraded now to 210322 build (and TWRP 3.5.1) and activated mobile data for the Google Play Store. Let's see. Since the above post, I ran on 210118 without any issues.
Update 23.3.: Seems like the restricted mobile data could be triggering the 'soft reboots' - crossing twice a border today caused no 'soft reboots'! So far, same was a guarentee for a cascade of 'soft reboots'. Will continue testing and report. Still, I wouldn't define unrestricted mobile data for Google Play Store as a solution but rather a workaround. While it seems that a change in LineageOS is decisive, I can't judge who to point to for the underlying cause - Google, OpenGAPPS, LineageOS or a combination. Anyone an idea?
Thank you for very in-depth help for the issue.