^
I'm not that sure. Vader overhelmed Ahsoka in a saber duel to a degree, when she was barely holding her own. Then he managed to Force push her. It's rather easy to imagine, that he coulnd't just Force push her. Just as she needed to find opening at the beginning of the fight and Force pushed him in counter to his missed saber slash.
Just like Dooku; he needed to find that opening In Kenobi's guard, he overhelmed him and Anakin in a saber lock, thrown them off balance, which was enough to find that opening.
Maul find opening in Kenobi's guard as well, but it was easier as Kenobi had to split his attention to Maul and Savage.
As for Vader TK: he did to Ezra something similar that Dooku and Yoda did to Ventress. Yoda TKed her, disarmed her without any difficulty. She as well could be on youngling level, that would change nothing.
Sidious did something similar to Maul and Savage, but he did that rather by suprise. Wasn't that clear as Yoda's showing, but well, Savage and especially Maul are above Ventress in the Force overall.
Dooku was capable to subdue Ventress by TK hold as well, but short before he overhelmed her in saber duel to the level when she barely was holding her own.
Anyway, Vader did that to Ezra. To Ezra. And he Force pushed Ahsoka after overhelming her. Not TK hold or choke her.
Still, compering Vader's showings on neutral ocasions and his hype to his showings against Force users on decent level, he is just... medicore.