Condition Zero and Source released in 2004. Global Offensive released in 2012, eight years later. Counterstrike 2 released in September 2023, eleven years later. Counterstrike isn't the game to point to for re-releasing the same thing over and over.
Not saying they're good or bad, I'm just not interested in the slightest.
It's really only since then that game development times have skyrocketed as much as they have.
I don't play those games, either, but I at least understand the proposition that they present.