You can just use --first-parent to skip past commits in merged branches. Squash merges complicate stacked PRs. But I agree on not rebasing PRs. Another benefit

You can just use --first-parent to skip past commits in merged branches. Squash merges complicate stacked PRs. But I agree on not rebasing PRs. Another benefit to avoiding force merges is that it's easier for reviewers to compare changes since their last review.