Yeah, that's potentially interesting. Speed running is done this way in some categories. Nobody cares that you have some inputs which, if they were made in real time, would constitute the fastest SMB Any% because just that is called TAS (Tool-assisted speed run, typically assembled over an extended period perhaps by a large group co-operating) and already exists separately from "manual" speed running, if you want to claim an actual speed run they need video showing you and your hands making inputs, as well as the video game itself.

Since you're on video constantly while making attempts you might as well be on Twitch where you might even recoup a little bit of money from revenue share. Most of these communities are tiny, maybe you have fifty people peak watching your attempt at Blue Prince no-major-glitches Bequest speed running but you need to record video anyway or your attempts are just hearsay so eh, might as well. And hey, maybe you attract a following, the "hot girl bonus" factor applies on Twitch like most of life, but you might be a more entertaining watch than other players for all kinds of other reasons.