Well, the quick answer is yes, but I doubt if many people do!
When uploading a YouTube Short, for example, there is a specific question about AI, but it's not immediately obvious.
Within the settings section, under Details, there is an option to Show More.
(And if you're not clicking this anyway, then you should be, to add Tags!)
Once clicked, as you can see from the screenshot, it says "You're required to tell us if your content is altered."
If you click Yes, then YouTube will add a label to your video.
But, the main problem, is that YouTube has not been very specific, as to what it considers AI content.
For example, I use Text to Speech, does that count?
After all, it is AI-generated.
What about using AI to write your script? Or to actually generate the video?
I personally have never ticked Yes, and it doesn't seem to have made any difference!
What do you think?