- The only way to effectively “disable” Prime is to create a new CSGO account that does not have Prime enabled. Prime is enabled either by reaching rank 21 and linking a phone number, or purchasing it from the Steam store (search result 3, 12).
- On a non-Prime account, you will not have access to ranked competitive matchmaking. You will only be able to play casual game modes (search result 16).
- If you queue with a mix of Prime and non-Prime players, the entire party will be treated as non-Prime for matchmaking purposes (search result 19).
- Prime was introduced to improve the matchmaking experience by reducing the chances of encountering cheaters/smurfs. Removing Prime defeats this purpose but can allow you to play with lower ranked friends (search result 11).
- Since CSGO went free-to-play, Valve has removed the ability to earn Prime status for free by leveling up. It now must be purchased if you want Prime benefits (search result 22).
In summary, Prime is a permanent account status that cannot be directly disabled. The only option is to play on a separate non-Prime account if you wish to opt out of Prime matchmaking.