the only reason that might be an issue is because
1) your choice of optic will put it really low to the slide (not that that’s a bad thing) and so you may get a greater co-witness with your sights
2) because your optic is a green dot, it will look at least slightly similar to the glow of the green trijicon inserts….whereas a red dot would be obviously distinguishable
all that said, it will be easy to figure it out pretty quickly, and will be an easy fix if it does end up mattering, so probably not too much stress
i wouldn’t have that issue because with my astigmatism the dot from the optic is instantly distinguished from the sight