That's actually very untrue:
Falcon
Winter Soldier
Wanda
Vision
Spiderman
Hawkeye
Black Widow
Gamora
And all the new characters introduced have shown growth and went from point A to B sometimes further in their 'character growth'. Niqqaz just make up shyt to complain about because they ain’t on top anymore.
Lol falcon just got a uniform change, no growth at all. Hell they reverted him from the end of endgame where he had the shield for the lame ass tv show.
Bucky hasnt grown since civil war, they even set him back in the aeries.
wanda regressed and now she is dead.
Vision didnt grow at all from the end of uktron and them he was killed.
Spiderman did show growth but only after the death of aunt may, which is a issue in itself but i'll say that.
Hawkeye showed no growth through out the mcu, he is arguably the same today as he eas in the first avengers. They dont even hammer home the fact that he actually has a family amd children in the good films (his family is just a plot device in civil war, never mentioned heavily before or after in a real sense), let alone the garbage tv show.
Black Widow ehat changed about her in any of the movies, lol, ehat growth? They didnt even do her death and supposed connection to the hulk/banner well in endgame.
Gamora was the dame theough out the guardian movies, growth isnt entering relationships. You would have a actual point if you said her sister Nebula showed growth.
Dying isnt character growth
Moving from plot points isnt character growth my man.