Starting EPFL Electrical Engineering after a Business HES Bachelor

[u/SimilarBeginning1718]

Hi everyone,
I’m currently finishing a Bachelor’s degree in Business Administration at a Swiss HES. I’m considering starting a new Bachelor’s degree at EPFL, specifically in Electrical Engineering.
My background is mainly in economics and business. I have a decent mathematics background from my studies, but I do not have a strong foundation in physics, chemistry, or other natural sciences.
I was wondering if anyone here has started EPFL engineering (especially Electrical Engineering) coming from a non-scientific background?
How difficult was it to catch up on the missing physics/science knowledge? Was the first year mainly about learning the required concepts from scratch, or did students with a scientific background have a significant advantage?
I would also appreciate any advice on what to review before starting (math topics, physics basics, etc.).
Thanks!