does cs still have a decent player base

I haven't played CS in a few years is OG csgo still exist or is it only CSGO 2 now? and is the game still active

it's all cs2 now, they've shut down all official servers for csgo but you can still download it and play with bots on workshop maps. If you want to download it go to cs2 properties -> Betas -> Beta Participation -> csgo_legacy and it should start downloading.
I've seen some people host their own servers but i'm not sure if they're public. furiouss played it and made a vid a while back - https://www.youtube.com/watch?v=uFVSMHjaMH8&t=113s

official servers were down but u can play on 3rd party servers if u want and yes u can downlod the og cs