How do you prepare for an onsite when the scope feels like it could be anything and everything?

I’ve got an onsite coming up with two technical rounds and one behavioral. The recruiter said the technicals could cover DSA, pandas, maybe SQL, live modeling exercises, or even a case study. There might also be some GenAI knowledge checks. So basically, it could be anything.

I’m feeling pretty overwhelmed because it seems impossible to prepare for everything perfectly. I’m confident in some areas, but definitely not all.

What’s the best way to approach this? I have a week to prep.