Absolutely fµcked up, from the ground up. Valve should delete this and re-release CS:GO.

Sub-tick is a mistake and should be deleted, then forgotten about forever. Worst netcode of any multiplayer shooter, ever. Puts Tarkov and Battlefield 4 to shame! The game is now unplayable online unless you're under 10 ping - even then, you'll still experience clientVserver desync, which results in wildly unpredictable gameplay in an otherwise highly skill-based shooter. Valve keeps trying to update the game, keeps trying to make it feel better. It never works. It continues to be terrible, because the idea itself is fµcked beyond belief. It doesn't work. Other devs have tried Sub-tick, yet failed. Valve, egotistically, assumes they can do it right even though others have failed. Learn from your peers. This is not the way. It is proven.

80% of the content from CS:GO is deleted and has yet to return. Where is Danger Zone? Where is Flying Scoutsman? Where is Lake? Where is Agency? Where is Rialto? Where is Assault? Where is Militia? Where is Lunacy? Where is Shortdust? An astronomical amount of content was completely scrapped in order to ensure Valve released this awful "new Counter-Strike" on time. Why would you release a new game without planning feature parity with the original? Why would you completely throw the small, yet dedicated, community to the wayside? Valve was partially built by modders. A substantial chunk of Valve's cosmetic/lootbox income comes from modders. Yet, you wanna say F-'em? You don't even have a server browser to explore community-created content. Yet, you wish to profit from them?

Frame times and general optimization are in a laughable state. Professional CS players on optimized LAN rigs are crashing during major tournaments. This problem continues to get worse every time they non-update the game. I've had friends unable to play due to random crashes and technical issues, regardless of their specs. I've personally encountered random crashes - sometimes resulting in competitive cooldowns - just because the game randomly decides it will crash when loading an official Valve-Created map. This extends to salaried professional players. It's an embarrassment for what is supposed to be one of the greatest eSports in existence. Where is the quality control? What was the point of upgrading to Source 2, if it is just as, if not more, unstable as Source 1 was? Does Valve test their updates? No, they don't, and you can guarantee yourself there will be new tech issues with every patch.

Speaking of updates! Every time one drops, no matter how big or small, it introduces new bugs that were unheard of in CS:GO, as aforementioned above. Michael Jackson peek? Grenade Dinks? Valve told us the upgrade to Source 2 would allow them to develop and debug updates quicker. I have witnessed many updates to Counter-Strike over many years. While CS2 does, in fact, receive many updates - these updates are always broken. Updates regularly release in an unstable state, more so than any other version of CS. New bugs are a common occurrence whenever CS2 receives one. You can always expect something random to break whenever Valve touches the game. What - exactly - was the point of upgrading to Source 2, if it only makes development more difficult? Did you screw up? Why won't you admit you screwed up?
Valve should be ashamed of themselves for deleting CS:GO in favor of this absolute garbage.