It was a suggestion for the interim; with any luck kernel 6.12 (LTS) might prove more stable with your machine.
I recall seeing others with similar troubles; especially with older laptops originally intended for the Windows market.
I’m presuming you’ve kept your BIOS updated, but if not, check with the manufacturer website. An updated BIOS provides security updates, adds new features, and sometimes addresses faults with previous versions. It can be worth the effort.
While this may be true, there are also recent Manjaro issues which might be contributing. Please see the items listed under Known issues and solutions of Stable Update 2024-10-10.
Specifically, look for the following headings:
- System freeze on suspend
- KDE Plasma hangs on Shutdown, Restart and Logout (Note that this item only applies to KDE; you haven’t mentioned which DE is used)
Additionally, in case others might spot something useful, please provide some detailed system information:
inxi --admin --verbosity=8 --filter --no-host --width
At the proverbial end of the day you must do whatever it is that works for you (Debian has always been a rock solid distribution).
If any of the current suggestions keep you on Manjaro a little longer, at least it will save you some inconvenience.
Good luck.