On Debian, this risk is partly mitigated by the infrequency of updates and by pushing out very well-tested updates to begin with. On Arch, you just have to deal with it every once in a while.
... not if you just postpone updating to the same schedule as Debian, lol. By spacing your updates out, you reduce the risk of catching breaking changes in just the same manner as Debian. Although Debian probably has more rigorous human testing as part of its release strategy, granted.
At any rate, I haven't had Arch break on me due to an update in all of the years I've used it. Over a decade by now. And I update very regularly.