This is a very strong claim that is almost certainly false.
Would you be willing to reveal your account so that it can be independently verified? For example I'm 2116 on lichess and looking over the last 10 opponents who are in the neighborhood of 2200, it is never the case that their moves are optimal compared to a chess engine. For the first 10 or so moves yeah sure, just play a book opening, but beyond that people at 2200 make plenty of mistakes every single game including blunders.
The idea that you can consistently make optimal moves over the course of a 30-40 move game beyond the book opening requires some kind of evidence because in examining the last 10 games of 10 accounts arbitrarily picked, there isn't a single one that isn't absolutely full of inaccuracies and mistakes.
Sure, I blunder and I never claimed it to be always the case, but sometimes I know a tree of variations really deep, just because I remembered it from looking at it together with a computer.
Anyway, here's my account on lichess:
toolslive
Would you be willing to reveal your account so that it can be independently verified? For example I'm 2116 on lichess and looking over the last 10 opponents who are in the neighborhood of 2200, it is never the case that their moves are optimal compared to a chess engine. For the first 10 or so moves yeah sure, just play a book opening, but beyond that people at 2200 make plenty of mistakes every single game including blunders.
The idea that you can consistently make optimal moves over the course of a 30-40 move game beyond the book opening requires some kind of evidence because in examining the last 10 games of 10 accounts arbitrarily picked, there isn't a single one that isn't absolutely full of inaccuracies and mistakes.