I am still playing Q2 on a daily basis. You can download Q2 and see all live servers without downloading an address file. http://q2s.tastyspleen.net/

There is still an active development for quake2 executable and anticheat detection.

There are roughly 20-30 people playing almost on a daily basis. We have tournaments too. (This year's tournament will play its finals).

You can also check q2servers.com. Most players have been playing for over 20+ years. The average age is between 35-55. Twitch and discord channels are also very active. Finally we are playing with voice chat (which is kind of useless considering the speed of the game).