No, did not. Another, bigger problem appeared: MIUI’s lock screen turns off WLAN after some time. I turned off all battery savers, access restrictions, but had no luck. So I returned it to the dealer. No more MIUI…
I appreciate that you’ve returned your handset so this matter is over.
But to reassure other users, I have a Poco phone (still Xiaomi) that’s brand new and running miui 12.5 and Android 11. No problems with f-droid. It installs just fine.