I think All Collectibles could be a category and then All Achievements or something like that. Not entirely sure but it should be discussed for sure. I feel like 100% would be both categories combined but idk for sure. Also Fodtrex if I could get mod that'd be epic please and thank you! I won't verify my own runs I'll only help with verifying others and maintaining this games speedrun page such as by adding categories and making resources and stuff.
Since I seem to be the main runner you can join my discord. I just made a channel for it. If Fodtrex wants to setup a discord later we can move to that but this should work for now. https://discord.gg/u5aMZX9
Thanks! For 100% it would be complicated because it seems like the kind of thing where it can either be considered to be all whispers or just everything, and if it is everything then that would mean you have to visit every room. Either way it would take 2 play throughs at minimum since you can't backtrack in this game and some whispers are on divergent paths. As for which room I knew to go to, I'm not quite sure what you mean by that.