Wait for To Heart vndb r82941,ToHeart Demake is based on the all-ages console ports. If you wan't all-ages To Heart just watch the 1999 anime. It looks like Pokemon game cutscenes or something with CGs being replaced by 3D models. They don't even do anything with it. Isn't Koikatsu mostly good for porn anyways? They should have made first person VR h-scenes but eroge are a dying medium. All the companies making eroge are stuck with the same format and trying to break into gacha or other more "respected mediums", the companies that made it big want nothing to do with eroge.
I've heard mixed things, but afaik it's just a visual change the content is the same so it's probably fine?