Expected uptime?

Just trying to get a sanity check here. I've run several Ubuntu 22.04 servers for the past few years, configured for automatic security updates, and they have to reboot every 2 or 3 weeks. I've just run up my first 24.04, also on security-only, and it needs a reboot after 20 days. I occasionally get the feeling that I've mis-configured something. What uptime should I be expecting for security-only updates, given that some of those updates require a restart?