Both of those games are live services games. They're not just getting some occasional bug fixes, they get big content updates.

While it can be disregarded just as major update CS2 is formally 2023.

Dota is live service game, getting major patches each year. Patch notes for version released 3 months ago: https://liquipedia.net/dota2/Version_7.41 I don't think there's any reason for Dota 3, ever. Any change could be just a patch.