From this past weekend:
https://x.com/RedditCFB/status/1835181385385972185
Uh, yes? That was the incident that was linked in the original post.
In any case, an individual fan is not subject to the rules. One person streaking across the field doesn't result in a penalty for either team. However, game day administration is subject to the rules, and one of their jobs is ensuring the crowd doesn't disrupt the game. If there's evidence that they are failing in their duties to control the crowd and allowing the crowd to cause a disruption, then the home team can be penalized for that.
If there's some call the home crowd disagrees with and they start chucking debris on the field, it's not an automatic penalty, but if the security and such can't contain the delay in a timely manner, that's when flags can come out.