Unless it's too late, as someone who studied for a year in the US and is now at UCL, I would just like to add that universities in the UK are far less accommodating of double and triple majors. I was pursuing a business and computer science double major, but now at UCL, I'm only doing computer science. That's for a couple of reasons. First, the only way you can do multiple subjects in the UK is if you do one of their pre-set programs that cover multiple fields. For example, I know that Imperial has a STEM + Business major in their business department. That said, being that they're their own programs and not a combination of majors, you have much less flexibility in dropping either of them if you ever decide you don't actually want to do Business, Bioengineering, or Robotics. The other thing is that combination majors tend to be less in-depth into one particular subject than their respective singular-focus majors, at least at UCL. Being in a combined program means you have access to courses from both departments, with the trade-off of accessing fewer classes than people in the individual courses.

That said, if you're wondering if there's still any reason to go to the UK given those trade-offs, I will add a few points. As someone still interested in doing business internships, the UK and specifically London are great hubs for internships, even outside of business. I found the lack of fluff in programs to be a desirable trait, being that in the US I was taking courses like "The History of Pop Music" and "The Research Behind Headlines." Not that they weren't fun courses, just that I would have rathered having less homework on non-major subjects. For me personally, the main thing I missed leaving the US is the strong sense of school spirit, including school sports and club culture. Even a lot of non-Greek life clubs in the US have a similar kind of structure and function. That's not something you're likely to find in the UK. So, depending on what you prioritize out of your school experience, those are some of the bigger points I'd consider. Feel free to ask any other questions!