I'm lucky never been seriously affected by a narcissist (knock on wood) and many of you have told you have. You're much more sensitive to even the smallest signs, that I personally miss, and call her out. She's showing narcissistic, selfish, unemphatic behavior and has a facade. This we can all agree.
She's just started to film herself and it's only human, that you try to show yourself in a better light than in reality. Problem is that she's not that good of an actress, she doesn't ring true. We sense that. She's trying to play the role of a frivolous flibbertigibbet with no care in the world. Always happy and laughing. Dreaming of living in her own little gilded world, her being the beautiful, rather nervous bird everybody wants to possess. She needs to learn to be a better actress
![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
or her public persona needs to come closer to her real self. In patreon videos she's more serious, but if confronted with difficult questions, she retreats back to her flibbertigibbet mode. She ends looking always a bit fake, which is a warning sign of a narcissist.
If she's truly showing herself as she is (what you see is what you get), then I agree with your diagnose.