@Tom0veConsoles players are supposed to enter a PC-centric Match if they happen to be in a Party with a PC User. (that's probably why you fought against a Console Player.) The FAQ made that pretty clear, and I'm going to copy-paste two of the paragraths from the FAQ.
Before cross-play, each platform would only play with and against other users on the same platform. Now, all console players will play together, and PC players will continue to play only with other PC players.
If, however, an Xbox One or Playstation 4 player and PC player party up together, they will be put into PC matches. This ensures that the console games don’t have PC players in them, but still allows for the console player to play with their PC friend if they opt-in.
If you believe that's not true, you can back that up with your evidence (like leaving a link, screenshot or a video clip).
you can also verify that by looking at a Player's Cross-Play symbol (PC's symbol is a Screen and PC Tower). I consistently see that symbol when a player defeats me, and I have yet to be defeated by a Console Player.
Even if [PC Players] gained the ability to turn off Cross-Play again, you still going to deal with Controller Players (with Aim Assist turned on by default) unless Respawn made it Input-only Matchmaking, which PC Controller Players can still play with Keyboard/Mouse players via Input Mappers (but losing Aim Assist in the process, for non-traditional gamepads like Steam Controller, it won't matter to them)
So yeah, I'm mostly fighting for here because I'm correcting you.