[makeitdouble]

If the tooling allows rollbacking X, Y and Z as a set, it could make sense ?

I'm also on the "compare to the main branch" camp in general, but will sometimes end up with a set of X,Y,Z branches that have different purposes but all depend on X.

More often than not, the base dependency is a set of constants or additional class/methods that could be released with no impact (no reference in live code) but still need a somewhat lenghty review process. Reverts would be happening on the higher level PRs, which hopefully are independent.