It looks like this update is exclusive to India, I don't know about other people but my A80 after android 11 update I having major issues with incoming calls. It take from 10 seconds to 30 seconds for the person to hear me. The bug update that India fix that back in April but I don't think Samsung extend that update worldwide.
I gotten the May security patch and I'm in the Latin America region. I tried talking to customer care but no luck.