Yeah, all using Renpy. I re-read my comment and realized I wasnt clear on what I was trying to say: these mechanics, although exist in all these games you mentioned, often doesnt work properly because they change most of the designs and functions, leading to problems: one of these problems that annoy me a lot is when the rollback bugs some variable, doesnt show up the menus properly, or rollback too much because of the implementation of scenes
And yeah, I agree its a bummer when it doesnt have rollback lol