My mother-in-laws m1 macbook air exhibits the same issue, and she hasn't installed anything but apple's own software on it.

Not every time, mind you. Only about once in 50 times. Sometimes she goes for weeks without it. Sometimes it happens several times in a day.

My 2016 imac has some weird issues as well, like not supporting some of my keyboards when I use a nonstandard layout file (swedish dvorak)- even though they work just fine with apples own keyboards.

Apple has some issues with quality control. Things have gotten steadily worse since 10.5, even though I do enjoy the new features.

Not just weird things like the one above, but basic things like standard shortcuts not working when you have Swedish layout. Now I cant remember which one it was, but it was something that should do a common thing, but instead brought up the "search in the help files" instead.

I have been bitten by it every time I use a new mac or do a fresh install.

These issues are intermittent and only happen sometimes. My system is not broken, it's a design defect/tradeoff in macOS sandbox. I've seen it on at least 5 different Macs on a lot of different versions of macOS. It's been an issue ever since they use a separate process to show the dialog.

This is intermittent and has been an issue since Catalina (on x86) and occurs on my (fresh install, no migration, nothing weird) M1 mini on occasion.