Episode #131 just had Yamamuro as animation supervisor, yeah. That episode had Ishitani Megumi (one of the series' assistant episode directors) storyboard and direct (her first officially credit, although she was allowed un-credited control over a previous episode). It's such a well directed episode. Ishitani talked about
how she depicted Jiren's depression in Episode #131 and you can really tell that she just GETS it. It's such a good thought-process.
Yamamuro's corrects are as disappointing as ever. Luckily he didn't entirely correct Takahashi Yuuya's scenes--we can still see how
Takahashi draws muscles like Yamamuro did in 1993-1995--but those faces took a hit.
Episode #129 was hit so hard by the poor production schedule the series has always had. The storyboard and episode director was by Mitsuka Masato, who is now the series director of the 2020
Digimon Adventure: series. They are also storyboarded Vegeta versus Broli in the 2018 film if I'm remembering correctly.