What scopes do you use? PC

I know I suck at the game, my aim isn’t terrible at fps, I can get easily diamond (or equivalent) with aim alone in most fps games (not knowing much game sense). But I lose my gun fights a lot in apex even in gold/plat lobbies. When I say gun fight, I do mean literally 2 people shooting their guns, no abilities used whatsoever, pure gun fight, not even using cover, which I feel like I should win those fights.

Now I think the problem could be the scopes. But I don’t know. Do you use the 1x or 2x more for close to medium fights? I’m not talking about using long range scope for like triple take or sentinel. I don’t know maybe you do use a 4x for close quarter, let me know.

I do find apex very difficult, like for sure I can rat it out till I get to plat maybe even diamond. But I want to win my fights, I want to kill people. If you got any tips for me, that would be great. I know most fps games can get to a decent level without too much crazy mechanics, what are the most fundamentals that I should start doing and be able to implement. (For example, in OW2, you will start climbing when you stop dying, for support, would be standing further back or for tanks not to engage too hard and lose LoS for your support, this is just an example of easy improvement)

Sorry for the long post. Maybe this is just not my game. Thanks in advance.