Ryzen m15 R5 Outlet Model: Just bought my nephew an Alienware laptop could use some pointers

I got the Alienware m15 R5 from the Dell Outlet. It's only got a 256GB SSD but it's got 16GB of RAM, a 5800h and a RTX 3060 with a 165hz 1080p display. With coupon I got it for 977.45 shipped.

He doesn't know yet, it's his Birthday today and the deal on the Dell Outlet presented itself so I scooped it up. He's going to start community college this fall and he's been needing a laptop for school work when he goes.

Any ideas from current R5 owners on how I should go about setting up this laptop for optimal battery life? I've seen that you can't use the AWCC to mess with the CPU or GPU clock settings and this is the first AMD system I've purchased; I don't know anything about managing AMD CPU's. Would ideally like to try getting more than 4-5 hours on battery. Also, am I going to have to bother Dell for an SSD stand off still? I have a 1TB SSD I want to put inside the system.