You don’t need to even make your activity public, just someplace people can see relevant stuff you’ve been working on.
Fork some repos, contribute some PRs to some projects you like, and generate some activity if you’d like though. People love to see that.
Boot to the previous kernel and run updates until you get a 6.9, or go download and install the rpms yourself.
They pushed a bad patch with 6.8.10 I think? They had to roll it back and push another real quick, but some caching issue still delivered it to a bunch of people. You should on the 6.9 line now anyway as 6.8 is EOL.