[zeotroph]

That's exactly what Gerrit can do. When you push an x-b-c-d-e chain, these show up stacked in the UI, but you can easily cherry-pick b onto main (see that the CI passes, and the usual review), and rebase everything on top of that. If it is x, the bottom one, you can directly submit it and continue with the others.

[lolc]

All this rebasing sounds like constant pain to pull from Gerrit. Does it actually create new branches v2 v3 after a rebase? Or how do I switch my local checkout to the rebased branch from remote?

[zeotroph]

That's just a `git pull --rebase` away (or set pull to never merge but rebase), and all the non-merged commits are rebased onto the new upstream, and while doing the rebase the already-merged commit is dropped. The next git push origin HEAD:refs/for/main will then push the remaining commits.