Learning how to brake effectively is a massive part of riding a bike. It’s a skill that takes a long time to learn and can be the difference between keeping the bike upright or not.
You can use timing and precise throttle control to turn the braking drift into a powerslide to finish the turn.
Riders with a very high level of front-brake control can brake later and harder, and with a little bit of technique some can drift the back wheel sideways into a corner to get the bike turned early. ‘Backing it in’ is spectacular, a lot of fun and it can be a very effective way of controlling a bike into corners in specific situations.