[simoncion]

Additional anecdata:

I've been using btrfs as the primary FS for my laptop for nearly twenty years, and for my desktop and multipurpose box for as long as they've existed (~eight and ~three years, respectively). I haven't had troubles with the laptop FS in like fifteen years, and have never had troubles with the desktop or multipurpose box.

I also used btrfs as the production FS for the volume management in our CI at $DAYJOB, as it was way faster than overlayfs. No problems there, either.

Go figure, I guess.