That looks like a pull-request by a random github user, and the approvals don't appear to be by maintainers either. So this PR means little.

Little more than a troll - a third party clicked the revert button, basically.

Wouldn't wait around for it to be reviewed/approved... but I'm willing to be surprised.

They are not. Even if they agree with the community. It is too late for release timeline of .NET 6.