From my knowledge, YouTube only allows up to 10 hours of recordings to be posted inside of a single video, but some of the Misc categories (All unlocks, though, I think can be done easily under 10 hours) seem to require more time than 10 hours, so how would one go about showing proof of these types of runs? Would it be allowed to have a multiple video on youtube 'proof'?

Is one allowed to pause the timer, and then come back after for instance a day has transpired? And if not, how would anyone even know, given that the recordings are segmented?

Normally this isn't allowed for most speedruns because it opens to the door to cheaters, for instance, if you do allow the above, it'd be very easy to just reset the speedrun timer back to what you paused it on, and try again, essentially segmenting as much as you want, but it also seems to be unavoidable for these categories.

I'm mostly just curious, the categories seem like a gauntlet to go for, not even really considering attempting them, but is part of the misc. nature of them, that they can't be completed? (At least, with video proof showed in a continuous segment)

I think a fun category could be 'all stakes' , where you play a single deck from White Stake through Gold stake.

Or it could be, play ANY deck, but beat every stake, so you could for instance play Plasma for stakes White->Purple, but erratic for the last 2, or something like that. Either way, seems like a cool category idea, to me at least.