Does hyprland support explicit sync at all? That sounds like the explicit sync issue that was fixed earlier this year.
Edit: Could run waycheck and see if linux-drm-syncobj-v1 (explict sync) is listed. I looked for NixOS and it "should" be supported, but best to double check.
For a full 32GB at the max sustained speed(275MB/s), 32ish hours to transfer a full amount, 36 if you assume 250MB/s the whole run. Probably optimistic. CPU overhead could slow that down in a rebuild. That said in a RAID5 of 5 disks, that is a transfer speed of about 1GB/s if you assume not getting close to the max transfer rate. For a small business or home NAS that would be plenty unless you are running greater than 10GiBit ethernet.
Are you in IL? I just saw my neighbor doing that, but he has dementia. I think there are to many people who want a manicured lawn. Personally I don't see why so many people like that.
On top of the thermal paste idea, try doing a ram test. Could also try adding "nvidia_drm.modeset=0" to your kernel commandline or add "options nvidia-drm modeset=0" in /etc/modprobe.d/nvidia.conf. It might have that set to 1 somewhere.
There may be more in the logs as well. Are you able to test in windows? Maybe the gpu is failing as well.
I have seen this as well with a couple games(FarCry 4/5). Also Arch/Plasma 6 with Nvidia 4080. I don't know if it is driver, kwin or dxvk related or something else though.
I can't tell from that output if you are using wayland or X11. If it is wayland I'd try X11 as the drivers before 555(?) don't work as well and some compositors may be more unstable with the nvidia drivers.
I'd also try checking the logs as well. 'journalctl -b -1 -xe' to show the prior boot.
If I am understanding that output, your bios is 5 years old and there are a LOT of updates since. If that is correct I'd try updating as bios updates fix things like PCIe compatibility which were released after that date.
You probably just had a program(s) use a lot of ram and that pushed some processes to swap. When the system needs it, it will be moved back. I’d +1 on setting up zram. Can be setup easily on most distros.
I would like to stop changing the clocks. I read a while back that in the 1970s they did it and reverted back because so many people complain about getting up in the dark. Seems like it would be best to keep the winter hours honestly. All the proposal I've seen want summer time.
There are millions of random internet users that could do a better job than him. And most if not all of them would be willing to work for 0.01% of that. The guy is successful in spite of himself at this point.
Does hyprland support explicit sync at all? That sounds like the explicit sync issue that was fixed earlier this year.
Edit: Could run waycheck and see if linux-drm-syncobj-v1 (explict sync) is listed. I looked for NixOS and it "should" be supported, but best to double check.