It seems on the M2 MacBook I have FUSE installed, on the new M4 MacBook I don’t. So the conclusion would be it’s using Webdav there. I checked other threads, and what I read is that all options MacFUSE, FUSE-T, WebDav can be problematic.
Yesterday approx. 8 hours long I was facing issues. When I was facing an issue, it often took me around 1 hour to get it to work again. Then later in the evening, suddenly it seemed to work more reliable again - I moved around quite a few files and moved them into new folders.
I have no idea what the difference could be compared to all the hours before that. It’s the very same vault. So I’ll need to observe that. I also found that there is a vault “Health Check” but that showed everything working just fine.
MacBook Air with M/Apple chips usually stay cold. Yesterday, I kept the vault open for a long time and the MacBook heated up a lot. Processes jumping up/down a lot when checking the Activity Monitor (Task Manager), but it tells me that there could be something fundamentally wrong.
Maybe it works all as designed, or maybe encryption costs more resources as I initially was aware of + adding some known difficulties with MacFUSE, FUSE-T, and WebDAV.
One thread that has recent posts showing similar issues: Finder hangs after accessing files in FUSE-T mounted vault - #12 by KI1
If someone else is following, the initial post is about another topic, but all the issues I am facing led me to that question of how reliable this setup is and therefore about the possibility of losing all data