This started happening to me when I upgrade to Monterey and a Mac Studio.
Mac Studio: Monterey (12.4) and macFUSE 4.2.5. SSHFS 2.5.0.
Mac mini (Intel): Monterey (12.4).
I mount a filesystem from the mini on the studio with SSHFS. On the studio, using the Finder, I browse the video files and play them. At first, I thought it was VLC which was changing the files, but now, after a video is played, I immediately check the modification date. I've never caught a date changing right after playback. I have noticed sometime later than some of the files played have a very recent modification time, as reported by Finder.
This is a problem for me because I backup the very large drive using modification times.
Anyone else seen this?