Passed the Interview stage for the London office of European VC/GE Internship, Need Advice, tips, and best practices for the next steps.

Hi All, I recently graduated from a Non-target and completed a Summer Internship however, I didn't get an offer to return which is fine that is life, it has lit a fire under my ass to apply for other roles I managed to line up an interview with a pretty good firm and after a conversation with the Analyst (where I pitched a company I was quite interested in) I felt like the team and what they did was a good fit and a great opportunity to have more responsibility.

They Invited me to the office for a 90-minute unprepared case study and to meet the team and then a 12h take-home case study, the firm focuses on both early and growth-stage companies( Fintech/insurance, digital health, enterprise software, and consumer tech), what kind of modeling will I be doing for the case study will there be any models at all? What are good resources to practice and any tips you might have? Is it more of an exercise where they just give me all the data and I have to hand them a deliverable?I am assuming for the 90-minute one it will be something along the lines of this is X company doing X in this Vertical what is the Value prop, Risks, Go-to-market strategy, thoughts on the current market, and competition possibly other questions around top-line financials (revenue growth, gross margin).I am more concerned about the 12h case study.Thank you in Advance for any tips or useful things I can practice.