Played on steam deck. Downloaded the windows version, added the exe to steam, then changed it to use proton experimental. Some shader comp stuttering for the first 10 seconds, then played perfectly smoothly.
I loved eeeeeverything about this game, except for this level. It was sheer stubbornness that had me persevere through this bit. Despite that this was overall a wonderful experience and worth playing for anyone who loved Celeste, especially anyone who also loved Mario 64/sunshine