I do not think you watched the videos, because this is directly addressed. Julian says Newtonian physics is fine but it has a limit. Nothing "behaves differently" in this timeless model, because nothing changes but our perception.
What would change though is the math.
Getting rid of time" in quantum equations would fundamentally change the way quantum mechanics is formulated, potentially requiring a complete rethinking of the theory, as it would involve removing the time variable from the Schrödinger equation.
See: https://www.scientificamerican.com/article/why-some-physicis...
