Trying to wrap it up, it looks like several threads are reporting issues which seem to be related (or the same). If I’m not wrong, it appears to affect several FP models, from different countries, with different operators: even if they have dual Sim enabled (Thread1, Thread 4 and this very thread), or have only eSim in use (Thread2), or they have both this issue in physical and virtual sims not using them alongside.
Thread1
Thread2
Thread3
Thread4 (from e/os/ community forum)
I just tried, as succesfully happened to solve the problem for one user in Thread1, to delete eSim, reboot, install a new eSim, reboot again… it’s been working for an hour or so, which is a very good improvement for my phone. It didn’t work.
I hope this could help someone 