[h4kunamata]

My Lenovo Legion gaming laptop running Linux Mint Cinnamon takes ~10s to boot. I hardly ever leave it on, I mean why??

It is silly to use a cron job to do something that only takes 2s for a human to do.

My homelab Debian Netinst servers tho, run non-stop for months or even years without reboot.

Half century ago Linux had a bug where servers had to be rebooted after X hours, that is no longer an issue. Windows however requires a reboot because its pagination memory gets full and the longer you run it, the more the performance goes to shit.

[tolciho]

Months to years without a reboot sounds like a pretty big gamble as to whether the hardware still boots, or not. More frequent reboots tend to catch "the hardware has soured" (and how would you know?) issues sooner, like maybe the BIOS decides to come up with the clock set four years into the future and then time sync can fail and then everything fails. The prior example was strictly hypothetical, of course no real system would ever do that.

[GoblinSlayer]

My old notebook periodically failed to boot, so I kept it running to not see it fail to boot.

[sbstp]

Don't you reboot servers to get kernel security updates? I usually have unattended upgrades with the option to reboot during the night if necessary