Rolling release 🤷🏻♂️ there might be updates which cause issues where you might need to rollback, if you can handle that it shouldn‘t be a problem.
I‘m using Arch myself since about 2 months and never happened that an update break something for me - when something broke it was my own fault.
Nah, I run my updates maybe once a week on average. If afterwards something breaks, I simply do a complete Rollback (with e. g. snapshots). If after the next update its still broken, then I start to dig in „what“ is broken and how I might fix it
But as I said, it didn‘t happen to me yet - but I‘m also fairly new to Arch as well, so that‘s at least my plan on how I would go after it.