Wifi Connections Drop

Similar to the description in the following topics, I have wifi that disconnects on it’s own. Connection works upon on-off cycling the wifi, but drops again, I guess when the phone screen turns off or goes into some kind of power saving. This phone runs lineage OS, specifically version 20 (February 14) at the moment. Earlier iterations of lineage OS seemed to behave better, so this could be related to something changed in the last several updates.

A diversity of well tested wifi networks are affected, the issue is definitely with the Fairphone device.

There is also a concurrent issue where the cellular connection seems to drop and reconnect a lot - not sure if that might be related.

Would appreciate any tips to further diagnose or resolve the issue

I experience the same issue since the past couple of weeks. The wifi keeps disconnecting from various wifi networks.

Are there options to solve the wifi issue?

Ps. I also had an issue with cellular connection while travelling and disrupting phone calls, but this seems to have improved (after changing the SIM card?).