100%, 106% and 112% are only allowed to be played on patches where it is the maximum completion.

It takes the number of grubs you have, so for the first grub you save in a run you would use the "Rescued Grub 1" autosplit and so on.

Console run leaderboards are for runs done on Xbox One, PS4 or Nintendo Switch. If you're playing on PC, that's a PC run regardless of input method.