The question is if they will close that 15-20y gap in 3-5y

Not that I’m using them, but what about these two?

https://www.truenas.com/truenas-scale/

https://www.proxmox.com/en/

What’s garbage about it?

Mandrake/Mandriva is from France

Canonical/Ubuntu is uk

Does that mean that fedora is not recommended?

Look for an error in the journal as soon as the error you mentioned happens. Maybe some details get saved in the journal. Post it somewhere online like pastebin, then we can maybe tell you what to check next

Like others have said, what you are experiencing is super unusual

Like @wildbus8979@sh.itjust.works just said, run memory test.

What hw do you have in that laptop?

something went wrong, but we’re not sure what it is.

Check the system journal with

sudo journalctl -e