I watched the first minute.
First of all I think this is the same women who I saw a year or so ago in a video about hidden dimensions of reality (or something like that), it was actually a video presenting complete woo. It was made to look authoritative, but it was actually unscientific garbage presented as a attempt to deceive impressionable people who have little or no genuine education in research science ... the first 30 sec of what she was saying in your link looks EXACTLY like that ...
... she starts by immediately claiming "scientists say something exists if it is useful to explain observations", she says that is what scientists mean by "existing". OK, well that is thoroughly misleading garbage to start with - scientists do not say things exist on such a basis as that ... she is trying to dismiss and minimise what science can say about the world around us, and she is doing that as she then immediately reveals, to claim that philosophy is needed to explain what is real (not science!). If you believe this sort of internet conspiracy theory crap, then it's no wonder that you have a seriously misguided and frankly uneducated view/belief about the world.
Scientists do not generally say anything about "reality". They do not need to. All that we need to do is to study and explain whatever our senses and our experimental systems detect. So called "reality" does not come into it. Because there is no reason to doubt it. If someone like Sabine or any philosophers claim that the observed reality may not exist, then it's their burden to show how and why that is true (or even possible) ... science does not need to do anything like that ... we just study and explain what we are confronted with.
If you do not believe that things actually exist, eg a bus, or your computer or yourself, then all of the burden is upon you to explain how and why none of that exists.