I haven't played in a while but it worked last time I tried (a few months ago maybe) otherwise you can play using the third party launcher and servers.
It sucks that quake only lives through QC, QC is such a garbage game. The client is half assed. The entire game is still in early access. The movement and shooting mechanics are fine but I hate champions and abilities 0/10
They suuuuuuuuuuuuuuuuuuuuck I love stunting on people with the stupidest loadouts in CoD, Going 20:1 in CoD by just holding a hallway with stabilized machine gun never stops being funny. Eventually the SBMM will boot me up to sweatlord territory but until then just using basic infantry tactics and pieing corners for kills while people flop around like neurotoxin poisoned trouts trying to be cool movement shooter dudes is hilarious. When I learned you could cook grenades with extreme precision I did nothing but airburst grenades in people's faces for like two days.
Try Hunt Showdown if you want something really different. It's all old school cowboy guns, and two hits to the upper chest kills with any weapon within it's effective range except bows, shotguns, and the elephant gun. It gives fights a very different pacing. It's PvPvE with twelve players in teams of 1-3 competing to track down a boss monster, kill it, then extract with the bounty before someone else guns them down> The game is brilliantly constructed so that players organically move towards each other as they progress through each hunt. Instead of a big death circle forcing people together players want to do things that lead them towards one another, and hte result is that you know peolple are coming, but you never quite know from where. It has the best positional audio in gaming - You can hear every gunshot from anywhere in the 1kmx1km maps, you can tell roughly what kind of gun it was, whether it was inside or outside, and almost precisely what direction it was from. Which means every time you want to shoot you're telling the whole map where you are. Managing how much noise you make is a huge aspect of the game that is one of the first skill floors new players have to climb to.