For this next one, by holding the LT button on the controller while making Sonic move left or right, the player can make Sonic go left or right without turning 90 degrees, much in the Sonic 2 like special stages in Sonic games and Sonic and the Secret Rings. This can be useful for accessing paths on ramps on the side that would require this ability, and upgrades like in Sonic Adventure can make this go smoother.
It is much like these.
https://www.youtube.com/watch?v=qCbsS4k5Enk
https://www.youtube.com/watch?v=yZGJ0s70xRk
Next one is called Re-Acceleration. When Sonic brakes when the player holds backward, Sonic can, when stopping or being close to stopping, can accelerate to the previous speed he was at when he braked if the player double taps the control stick forward to make this happen.
Now, this idea, called the Selective Brake Drift, works like this. Look at 0:16 to 0:18 here.
https://www.youtube.com/watch?v=Zb4nK9ssOWk
Notice how Sonic brakes before turning. With this, Sonic can do this outside of corner sections, but there will be thick, yellow marks on the path at certain corners where Sonic can do this move and not only that, there will be the option to turn Sonic left or right while doing this. Plus, if there is a number of paths when he faces left or right, as determined by the control stick while on these marks, as he is slowing down, the player can choose which path, which is highlighted when the cursor is on the path desired by the player, and Sonic will go to the path selected, though unless Sonic is braking a distance away, the player may need to act fast under a short distance.
For this last idea, called Ultra-Drift, look at the green dash pads here, like at 0:10.
https://www.youtube.com/watch?v=qIqPLft7cok
These dash pads, honestly were not the best thing done in the game, Sonic Frontiers, but with this, have them make Sonic make tighter turns than with the Drift alone. The Drift could coexist with this move, and if used in conjunction with the Green Dash Pads to turn even tighter and access new routes. The wider turns that lead to the more “outer” paths, if you know what I mean, will still likely have more rewards or even have something of still being a shorter path, so even you want to take the tighter turn, it is advised that you choose wisely.