I don't know how familiar you are with opensuse tumbleweed, but it is a continuously rolling distribution with a decent amount of automated testing of each release. At times, there can be 2-3 new releases per week. Sometimes only a few packages are updated in a release, sometimes everything is updated. But figure a couple of times a week, there is a new tumbleweed version.

One of the most common scenarios of breakage happens when a user adds a 3rd party repo that at times lags behind the Tumbleweed release cycle. Libraries and application versions suddenly conflict and the user could have a partially or fully borked system. A rollback to the last good snapshot makes a lot of sense - the 3rd party repo will usually catch up in a day or two, and the update that previously broke the system can be safely applied.