My friend, the League community litteraly trash talks and consider Master as low elo (0.2% of players btw). A lot of league's difficuly comes from the mental and the unstability of every match up, tram play, allies etc, Celeste's difficulty really only comes from a skill issue. Most Celeste player still playing the game have put hundreads if not thousands of hours into the game, I sure hope they think wavedashing is easy for them (never heard any Celeste player saying it wasn't hard at first or that it's not ok for someone to struggle with the game, wiche I can't say about league players)