You don’t always want to play the game, so what would be the best ways to improve other than playing?
Either watch Youtube guides on specific heros, or wait until they fix Matchmaker, likely to take months.
What’s wrong with the matchmaker?
Aim training. Playing death match is good for it too, if you want to play without playing the actual game.
Or if you dont want to play, vod review. Watch some of your games back and learn where you could of done things better.
Pretty much nothing. If your objective is to improve, the match maker is completely irrelevant. You should ignore people who repeatedly bring it up, they are not trying to help you.
Scroll down in the competitive forum, plenty of posts to read my friend.