Valorant offers only few boosts compared to Counter-Strike in particular. A few jumps will be important to master, and know that you can practice parkour in the training area.
Take left in the corridor facing the field where all the targets can appear until you reach the "open air field". On your right, tags on the wall indicate the beginning of the parkour course.
You'll have to master many jumps and the difficulty will increase significantly as you progress.
Blue prints on the ground will show you the way if you're in trouble. There will also be checkpoints along the way, so don't worry. You can also reset your progress at any time with a target to aim at.
Making a successful parkour without cheating will really not be within everyone's reach. We don't spoil the finish, tell us in comments if you reached the end legitly!