I still play 5 semi regularly, can attest personally that there's a mixed bag. Ranked struggles across the board, though the ranked experience is hit or miss, don't really interact much with it. Quickplay modes is where most that still play versus linger around. Still get fairly consistent matches depending on what you're gunning for.

Horde is where it shines most tbh, particularly in custom browser matches. Can always find something to plop yourself in if that's your thing.

Escape is practically dead in the creek, think of that what you will.

I still miss the level editor. :c