CS2's release thus far has focused on the competitive side of the game. A lot of stuff people loved about the previous games hasn't yet appeared, whether that's modes like Arms Race or particular community maps and things like surfing: What's the plan here?
Those modes haven't been forgotten! We have plans to re-introduce popular game modes and explore others. That being said, all game modes, regardless of their rules, fundamentally depend on solid core gameplay. So in the short term we have been keeping our development focused on the spaces where players spend the overwhelming amount of their collective time. It's a trade-off, and understandably frustrating for players who primarily enjoyed other game modes, but we believe this is the best approach for the long-term success of CS2.