What is this scraping sound my car is making??

Hello everyone, to preface, I have no knowledge whatsoever on cars & what things mean, so sorry if I can’t explain much more than what I got.

I got a used Hondo CR-V about 3 weeks ago from the dealership & about a week ago I started hearing this scraping sound. It’s gotten worse, & the video attached is from 10 minutes ago while driving. What is it??

Side note: In these 3 weeks I’ve had 3 different scary occurrences where my car needed to come to a full stop, but it almost felt like my brakes locked up on me & I had to swerve off the road to avoid a collision until my brakes finally cooperated. Could this be related to that?

Please, any help/info is much appreciated