51 days seems to be approximately how often my mac dies in kernel panic or starting to be bugged by persistent software problems that go away with a restart.
Sadly I'm at 2 days, 12:41 myself. I don't get many kernel panics, but this most recent reboot was in fact a panic, coincidentally. Googled the error and it came up as something that happens with M1 Mac Minis while they're sleeping. But while my machine has a M1, it is an MBP and not a Mini. And it was not sleeping. Ah well.
I just rebooted my EeePC. It had an uptime of 5.8 years. I only rebooted it to upgrade from Debian 9 to Debian 10, and I'll bump it up to Debian 11 later on. It has a broken screen, so it just sits on top of a cupboard with a couple of 4TB USB hard drives plugged into it, storing all my backups.