Saved, owner of the Speedrunning discord, has just confirmed that the Figure Closet Glitch is allowed in runs. (if I put "[ ]" around something, it means Im not sure about that detail)

The way to preform the Closet glitch, based on what I've seen, [is to spam Q/E when the heartbeat minigame begins (but not when the heartbeats get too close to the middle, causing you to fail it)]. Once the figure is stuck in the animation for the closet, aka when the hearts reach close to the middle in the heartbeat minigame, you are generally safe to hold W and leave the closet (I've died from getting out too early). Keep in mind, you might still have to press q/e even when you're out of the minigame. I advise to walk around to the sides of Figure rather than through him as he might still have his hitbox [as others can still walk into him during the closet minigame and die].

So, with being able to lock Figure into the closet animation while we're able to run freely about for a few seconds, would this be viable anywhere as a new Speedrunning strategy?. I have a feeling it could work, but the best solution I'm seeing right now is avoiding figure altogether.