I think it's great that more companies are providing longer OS and security updates, forcing the standard to be higher across the board. I think flagship phones are more than capable of handling the 3-4 years of OS updates.
I was also considering between these 2 phones. I was going to go with S20 FE because of the processor which should last longer than the midrange processor on A52. But A52 came out later and should receive longer updates (from launch date). Ended up g...
I just ordered a S21 FE too... waiting for it to arrive. Hopefully I don't get this issue as well. For reference, I saw this on Reddit regarding the same issue. In case if restarting (for the nth time still doesn't work).. factory reset though so not...