No they aren't. See darktable and Ansel. I will never use darktable again. https://ansel.photos/en/

Care to expand? What bad contributions did Darktable accept? Why should one not use Darktable?

Also since you seem to be familiar with both project, is Ansel compatible with Darktable sidecar files? If an existing Darktable user were to move to Ansel what can they expect to carry over and what might be lost?

Just try Ansel. I saw this topic a while ago. https://news.ycombinator.com/item?id=38390914

I am only familiar with his YouTube, and then this topic. https://github.com/aurelienpierreeng/ansel Here are his examples.

It seems 1:1 compatible when I switched.

But that is the issue. They won't be allowed to ask them to leave.

just don't accept the PR?

Then to endure the endless irrelevant debate, citing the code of conduct, as to why they have to accept the PR? (As illustrated in a few of these posted github tickets).

Don't forget the mob that some of these personalities can unleash upon you if you show yourself to not be aligned with their views.