If you want reliable updates Arch isn’t the best fit IMO.
It can be perfectly reliable for sure, but it’s permitted not to be.
If you really want to update and not worry about it, I would consider Fedora, they test updates and upgrades while also being very close to bleeding edge.
You’re not mandated to update often but its encouraged.
It can be a lot easier, for example, to fix one small break three times than it is to fix 3 breaks at one time.