@damsonwhufndthisDon't get me wrong, having a pre-made squad is still the best way to play this game. Like what MandatoryIDtag have said, it removes almost all of the aspect of the game that is frustrating. We also catch up with our busy lives while playing which is good for our mental health in general. It's easier to kill as a squad and to actually win games. It's just harder to get damage from teammates that can also shoot as well as you.
Having random teammates that won't quit or have the same playstyle as you is very rare. There are a few types of randoms that I see throughout the seasons.
1. Actual noob players that are put in my lobbies (God bless their souls)
2. Average players that toxic.
3. Sweaty players that just go into team fights, die, and then insta quit.
4. Rare decent players that are as good, if not better than you that actually play this team-based game right.