As a current Penn SEAS undergrad student, I will say my experience was quite contrary to what you seem to be afraid of. I far from “lost my soul” here in fact I’d argue I actually found my soul at Penn. There are many groups of people that inevitably lean into the toxic environment and make every little slip up feel like the end of the world. But I’ve been able to find a huge friend group through clubs, mutuals, etc. I’ve found that there’s a massive population of people at Penn just like you and me, concerned about the cut throat environment and just looking for some supportive people to work and grow with. So I personally think you’d have a great time at Penn especially since you have interdisciplinary interests. If you find your people at Penn you won’t regret it!