Squashed PR allow you to see a single commit, while rebased PRs show up as multiple. The squash has the defect that you can’t rebase PRs that were on top.

But a MERGE… is a single commit on Master, while keeping the detailed history!

- We just don’t use the merge because they are ugly,

- And they’re only ugly because the visualizers make them ugly.

It’s a tooling problem. The merge is the correct implementation. (and yet I use the rebase-fast-forward).

You can squash after rebasing or merge a PR without squashing.