I'm particularly interested in this as a possibility for these in regards to co-op speedruns. If there is a glitch or manipulation multiple people, or even a single person, can do to either get better loot or to beat the game then why not subdivide the Main Game category between Any% and Glitchless%?

In a hypothetical Glitchless% it would open up the opportunity to co-op runners to only have to record one POV because while yes the other runners in a co-op run could in theory do any potential glitches out of view of the one recording I find it unlikely since there would be a whole new category for that type of stuff; and if they are found to have done a glitch subsequent action would be taken obviously.

If a division of Main Game was reality it would eliminate the need for co-op speedruns to record the entire runs in a possible any% speedrun with the only caveat being they need to record their share of the glitch or glitches because not every has a good recording or streaming setup. Whether it'd be bad internet which leads to laggy stream footage or having sub-par setups that can't, or can barely, support recording along with playing a game. Having this caveat, while doesn't completely solve the problem, is at the very least a show of action towards this game being a good co-op speedrun.