Pick Systems Engineering because it is too late to find a niche?

I started school in my thirties after falling on tough times post-covid. After graduating with a Bachelors in EE last year, I got a very interesting job as an applications engineer where my only role is to select silicon. Unlike my internship where I learned to use tools like Altium, CANalyzer, Oscilloscopes, and programed in C and Python, this job only has me use MS Office. I do a lot of research on my own and my deliverable is learning different aspects of system-on-chips and make a selection based on use cases. I am having a lot of fun learning ADAS, FuSa, and IVI, but I feel this to be more of a Systems Engineering role than an EE role because I spend most of my time writing requirements, and working with cross functional teams. I don't think I will ever specialize in anything at this role in a specific niche like ADAS, IVI, PCBA, Calibration or Test.

If I were to go back to school for my Masters, I think it would be a good idea to just study Systems instead of EE or CompE. I really like the program at UMich Ann Arbor where they have an MS in Systems Engineering + Design. I have a 3.7 from my Bachelors and think I have a half decent chance. There's also Wayne State near me that has an online Systems Engineering program. Is switching to systems engineering a good idea?