I recently refactored a button component to support an href prop and output an anchor link instead of a button. The work took me 8 hours, and I made 36 commits that touched 32 files.

There wasn't any logical way to make that a smaller PR unless I wanted to split every 12 commits into 3 separate PRs.

But, touching so many files, I could have introduced a lot of bugs. It's much better for the team to know exactly what I was doing in each commit than just "support href prop."

I do agree, though, that small PRs get reviewed while big PRs get approved.