Hey Jason, welcome! The Drive file is set to private currently, so we can’t view it.
I wouldn’t recommend bracing the wrist on the bridge. If you do want to anchor, the best anchorers do so somewhat banjo-like, with the ring and/or pinky finger on the pickguard. The main thing is to not let it restrict your range of motion, so it’s usually better to sort of drag the anchored fingers across the top rather than lock them in place. (Tony Rice, Josh Williams, and Bryan Sutton are some incredible examples) That being said, I’ve seen good players who plant the wrist on the bridge- they’re just less common. (I think Trey Hensley does, though.)
Overall, finger planting and free floating are the best. I don’t think just one works for everybody. I choose to plant, because it’s more traditional. I do like to float for rhythm licks, mainly on faster songs. I agree that you can probably be faster with floating (though Jake Workman, Chris Thile, etc. are as incredible as they are because of much more than just floating). HOWEVER, speed is not everything. It’s important, but not everything. I don’t think it’s as easy to pull rich tone with floating as it is when you’re in contact with the guitar. Just don’t ask me to do it yet
So if someone ever tells you that you NEED to float to be the best player you can be, go watch these videos and laugh: