Think it would be a nice addition, sometimes runners have different device layouts on their speedruns, to check their keybinds easier, would help new runners in that game. Or just to compare the movements of the runners in certain aspects. Not sure if it was suggested before but something like this:

https://imgur.com/a/oSmJLDj

the leaderboard moderators can add a custom variable for this.

see how i did for rally trophy https://www.speedrun.com/rally_trophy/leaderboards?h=Finland-Novice-SS3&x=l_z98mv7lw-9d831eq2-ql673dw8.21dgx8g1

Oh wow, wish every game had that. That looks perfect.