I don't really use LinkedIn all that much. Is it like most social media, where it will show exactly what date the user uploaded a picture? If not, then that profile picture could still be kind of old.
I only ask because multiple recent comments by different people on YouTube videos about her have said that she's cut her hair short and that's why she suddenly disappeared, but of course not a single one of them has any proof of that. That, and I use the word "recent" pretty loosely, since they're all still at least a few years old. So if that profile picture on LinkedIn is from this year, and if those comments were true, at least she's grown it back long enough to pull back into a bun now.
Her hair was seriously so beautiful that it would be a shame if she really did get it chopped off, even if that was years ago and it's grown back now. Though like you said, with her career and everything, I'm sure she saw it differently.