Errors in online games are often the worst to deal with. The Call of Duty: Black Ops 6 "packet burst" error can be a frustrating experience, as it disrupts gameplay with noticeable lag, stuttering, or even match disconnections.
The day a new multiplayer game like Call of Duty launches is massive for the community. So, if an issue is preventing Black Ops 6 from launching on Steam obviously it's a problem players want to resolve ASAP.