I think takes like this are not it imo. Yes some newer players will catch you off guard but if your fundamentals are good it shouldn’t be much different. People tilt too quick nowadays and lose their cool against players who are random and disrespectful.
The cold reality of fighting games is that you have to play weaker players and stronger players completely different. The stuff you learn that is more nuanced is, more often than not, reserved if you aren't fighting someone at that level.