Many years ago working for a monitoring software company someone had found a bug in the uptime monitoring rules where they reset after a year.
It was patched and I upgraded one client and their whole Solaris plant immediately went red and alerted. They told me to double it to two years and some stuff was still alerting.
They just said they’d try to get around to rebooting it, but it was all stable.
Everywhere else I’ve worked enforces regular reboots.