I think one of the biggest differences is that the youtube bubble could burst tomorrow and Fleur would be absolutely fine - youtube has always been more of a hobby for her, and she could very easily live exactly the same lifestyle without it, whereas most others on youtube rely on it as their main source of income. She does it because she enjoys it and so things very rarely feel forced or disingenuous.
This is Huge!! while I understand youtube and influencing is a job.
You can tell which do it because they genuinely enjoy it, and do it because they genuinely love what they are talking about
I find many youtubers (especially those who get backlash and are notably phony) no longer do it because they enjoy it and because they are greedy, fame hungry, and all about themselves.
Fleur is not this way in my eyes at least because she doesn't have that pressure and idk if id say its a hobby bc she puts a lot of time into it and going to events when she doesn't need to, but either way she genuinely likes what she does, and that does 100% show in her content and videos.
I think thats a part of why her audience has stuck with her for so many years because she has kept that same level of herself and trust and integrity in her content over the years and continues today