Matchmaking cannot be gamed.
It is all-seeing and all, sadly, science.
Apparently, it doesn’t quicken the process and can “even be detrimental”.

“This creates a vacant spot on a team during an early stage of the match.
TL;DR trying to cherry-pick maps may have an unexpected result.”
I swear, though, that sometimes the queue genuinely can get stuck!
I’ve been in games, COD or otherwise, where matchmaking does bork itself and finds nothing.
Elsewhere, the devs move onto a defence of their skill-based matchmaking.
There’s been a lot of discourse over the years on social media or otherwise about skill-based matchmaking.

They want to mince lower skilled players for fun!
They will say that ranked matchmaking is the place for sweaty lobbies, and casual for everything else.
But I think the skill-based matchmaking haters forget that others would like to have fun, too.
A wild west saloon of a matchmaking algorithm would likely cause player retention to tumble.
I would bet a lot of money that it, too, had skill-based matchmaking.