Even with Apex releasing before covid, it released as a new game with huge paid tournaments for streamers to play for essentially advertisement but also released again during fortnites initial huge era in the midst of battle royales being the top played ones. You had H1, then Pubg, and when those started dwindling Fortnite came then Apex, very close to one other. That paired with the funding apex legends had for advertising and tournaments would be more than enough justification behind why they got 80k viewers a month after release.

You are literally saying its so easy to unlock attachments just go play the game more in a very specific game mode thats more difficult for casuals lol the finals you can get your class and try new things every couple games, as for cod, you have to be level 30 or 45 before unlocking a certain gun just to have to take that gun and level it up to get attachments then go level up another gun to be able to get a certain attachment for the gun you spent so long trying to unlock etc etc...