What can I do to maximize my chances at a high intern rating at Meta? And what org to join?

Hello! I'm joining Meta as a SWE intern in the Summer of this year and would like to maximize my chances at getting the highest rating possible, alongside setting myself up for a high growth rate if I'm able to join as a New Grad. Sorry if this is really long, I wanted to bundle my questions to not have to give context multiple times.

For full context, I'm in my last year of University with 4 previous internships of experience (1 at a large bank and 3 at small-mid size companies) and I'm currently doing an internship until April at a SaaS tech company (think like public ~40B market cap, 8.5k employees) with a sizeable amount of ex-FAANG employees so it's much more relevant than my previous internships have been. The Meta internship is in the summer for 16 weeks and would be my 6th final internship - my University is big on internships and requires you to do 6 of them which is why I have more than usual.

Onto my main question, I want to try to go all in and get a GE+ rating at the Meta internship and do my best to grow as much as possible there (at both engineering skills and climbing the ladder). I've watched the series on securing intern return offers but I'd like some advice on what I can do to go beyond that.

I think I'm in a unique position where I get to do another tech internship right before, and would like some advice on what I can do here to practice some of the things Meta would also look for to achieve GE+. For context, I just finished my first month (1.5 weeks mandatory onboarding, 2.5 weeks actually working) and merged ~20 PRs, my manager and team says I'm doing really well here but I have no idea what Meta's standards are for code velocity and quality so doing well at Meta might look totally different. However, to be completely honest, I've also been pretty lazy at the current internship since I don't care much for a higher rating (+ tasks have been kinda boring lol) and only working ~20 hours/week so I could be doing much more, which I realized I need to change if I want to get into good habits before joining Meta.

Additionally, team matching starts soon for Meta and I was looking into what to select. By far my highest interest is within Reality Labs related work but I don't have much experience with VR. Would RL make a bad choice for my goals? At my current internship I'm mostly working on Dist Sys and ML Infra for abuse detection/prevention.

Thanks in advance and apologies for the really long questions.