Just split your audio so that your personal music isn't captured:
However if it's IN GAME audio that's copywritten, good luck.
This bug can be seen on page 1 of the FAQs thread. https://www.speedrun.com/speedrunning/thread/pt010/3
I'd read through this: https://www.speedrun.com/speedrunning/thread/pt010
Raced a 100% completion thing in super mario party against @anglel on a whim for what was a completely blank category. After around 9-10 hours of streaming and competing, I won, so I figured I'd have the 'WR' at least for a short while. Turns out there was a pending run completed a day or two before we did our runs. It was still a fun time though, but that was kinda sad.
@YUMmy_Bacon5 you're probably right with that.
If you have over 100 subs you can just have a link of link your custom url. For example: https://youtube.com/sizzyl or https://youtube.com/szylyt
Please read this thread: https://www.speedrun.com/speedrunning/thread/pt010 It answers your questions here and more.
w/ all the technical questions, I'm sure someone else that can answer them will come by this thread.
For the others, I'd consider making a visual guide on things, since many people hate reading.
Please read through this https://www.speedrun.com/speedrunning/thread/pt010