We have in common that we're both season zero vets who are consistently matched with teammates who just installed the game last week. This is the primary reason I drop alone and have no interest in teamwork. I wish them well, but I can't help them. They make bad decisions and then double down on them instead of looking for ways to reset. They want fighting, not winning. They think tactically, not strategically. They have attention spans that would be strained having to go more than thirty seconds between engagements. They're the people who describe battle royale as a walking simulator. What am I supposed to do with that kind of thinking?
I'm wondering what your typical skill distribution curve looks like, especially in terms of how much of the total curve it covers. Last season it was very common for me to get matches that spanned virtually the entire curve including the very worst and the very best players in a single match. This season my average match is so tight that the red bar almost fills the gray bar. I still get plenty of opponents who obviously are presenting to the matchmaker as something less than they really are. Sometimes a LOT less. But I still count the tighter matchmaking as an over all improvement. A significant improvement.
But when it comes to matching solo queue vets with teammates who are new to the game... that's a thing this game has always done and a thing apparently that it will keep doing until the end of time. I feel your pain.