My 2020 M1 MBA has been some exhibiting some weird (and loud!) behavior lately. Sometimes when a notification wakes the laptop from sleep, the alert noise will play - over and over again in a loop. Tapping a key or moving the bluetooth mouse will usually fix the 'stuttering', but it's pretty weird behavior. Anyone else see this? Seems like it started happening since the latest official Apple update, though I'm not sure if that was an OS or Safari update.