I guess, for me, the thing that's most noticeable with these badges (or rather noticeable because it's
not noticeable...) is the Starfleet arrowhead / delta symbol: it very much looks like it will be all but completely lost against the background ellipse when seen from anything other than pretty close-up or, just possibly, when seen from exactly the right angle for the light to catch the various polished and matt surfaces of the new badge
All the other variants have pretty much maintained and emphasised the primacy of the arrowhead emblem as the main feature of the badge, regardless of the shape or features of the background.
Again, there may be a specific plot point here... maybe they're deliberately trying to downplay the overt "Starfleet" look of the badge in response to whatever the new political reality is in the future they have entered; it may be that these actually
are the Starfleet badges from that time period. We just won't know this for sure until season three plays-out.
So far, we have seen Burnham wearing what appears to be a gold badge on her blue/silver Sciences uniform and Culber and Pollard wearing silver badges on their white/silver Medical uniforms. I'd be curious to see if they choose to use the full range of gold / silver / copper badges to match the department / branch colours they have previously established for the Discovery-era uniforms.
To expand on my last sketch, here's a quick image to give some idea of what the broader range of badges *
might* look like...