Don’t assume you will get a higher gpa at UMCP. The premed program is rigorous. If you have been selected to participate in the Scholars program I would definitely recommend UMCP especially since you are also instate. The Scholars program will provide you great research and internship experiences and you also have NIH close by.
Provided you do well and utilize the programs/opportunities that the school has to offer I would recommend going there.
https://www.scholars.umd.edu/about/what-is-scholars
As far as med school admissions goes that is totally dependent on you (your performance and your experiences)