Does True Stretch really change something?

Hello, I am here to ask you guys about your thoughts on True Streched.
I am an old Global Elite and FaceIt Player and i can be sure that it changed alot on CS:GO but does it really change something in Valorant?
My cousin is a pro and told me if i want to really go hard on ranked i should play on fullscreen due to latency.
Thank you for any answer.