Similar experience for me. Openwrt was rock solid. Just that it sucks when we need to upgrade from one version to another and retain all packages, etc.
I had scheduled daily to reboot the router at 4am in the morning but been a year I manually reboot it once a week or so whenever I feel the speeds suck!
In my case it’s because I have craptacular xiaomi access points and random dlink/linksys that hangs intermittently (see it’s been 8 years and I still don’t care to know what it brand it is).
Maybe it’s uncessary. But what if a rogue device was burning through your FUP? I assume a reboot would break the connection and it’ll reconnect to something else or not at all.
What if you have neighbours who started a torrent while connected to you so rebooting causes them to reconnect to their own wifi, yeah?
Remote routers - setup to restart one a week
If router itself doesn’t support it then through an external cron job
At home, reboot as needed.. fairly rare though. Longest uptime I have seen is about a year (opnsense)
Currently at a month or so after I recently moved outage backup for all systems to a dc-dc lifepo4 backup
3am everyday, new IP address, feels secure,
Same way phone goes into Power saving mode, switches off every thing except Mobile network. I have good signal. If there will be an emergency individual will call me instead of dropping a Whatsapp or Facebook msg
Samsung extreme Power save with Grey scale using Modes
12 to 6 am