I'll agree that slow pipelines are irritating, but you should really take the extra time and fix your e2e tests. In a project I was on recently, our e2e tests were extremely robust and played a key part in re-architecting a fairly large backend for a site we were maintaining. They don't have to be flaky. I'll add to your original thread too, and say that disengaged product owners combined with changing requirements and/or scope creep have been some of the biggest sources of annoyance for me.