mostly runs great. video output dying at random makes it hard to recommend but will probably be fixed by the time anyone else looks at this
remapped the face buttons to z/x and the shoulders to q/w
one of the taverns tries to play www/audio/bgm/李斯特 - 爱之梦~1.ogg, which has gotten malformed in the directory and has been renamed 锞€閼堬焦锞岋緲 - 锝帮疆锞栵疆锞冿編~1.rpgmvo. Duplicating this and renaming the duplicated file to 李斯特 - 爱之梦~1.rpgmvo seems to fix that audio not loading properly.
in one place I had to go to www/img/pictures and duplicate cgn1Friedrich .rpgmvp (there are two spaces in the filename. the text parser on here has removed the second one) and rename the duplicated file to remove one space so that one one portrait would load right
sometimes the framerate just drops to zero for reasons I cannot understand. Input and audio will continue to play, and the game can be saved if you can navigate to the menu.
Honestly it's not the most teeth i've had to pull to get an RPG Maker game working, and the things that are broken aren't progression-breaking. It seems like something about the current version of Proton just isn't playing all that well with RPG Maker MV games, since the video output dying is a problem I've run into in another RPG Maker MV game. It's playable as it is.