Possibly now my favourite Starfleet uniform.
I always found it very odd that Star Fleet had a tendancy of massively revolutionising uniforms every few decades/new show. Like, this even occured
inside a supposed single run of the TNG Era, we had the attempted skort jumpsuit (which looked so silly it was mercifully never seen again), the tight ones with the large band of "please aim here" colour followed by the Voyager/DS9 shoulder pads style one, before finally settling on the TNGMovies/DS9 Dominion War greys and colours.
Discovery certainly tried something to tie together the ENT/DISCO eras, but I think became a bit too subtle, for example I hardly noticed the different divisional colours or the fact rank pips are on the badges within DISCO likely because the lighting on the bridge is nice and soft like on actual battleships to ensure everyone can focus on their station without bright distractions. Took a few cues from TMP era movies and abortive Phase 2 with the red uniforms which also didn't land too well and so didn't last too long. A nice attempt to link ENT/DISCO though, but ENT had the nice, "near the face so you can understand on closeup shots" of which division people belonged to.
Like, obviously the original idea was to sell colour television sets and so have everyone in bright, largely primary colours was a great way of showing off this fact. With Trek it's a great way of showing someone is within a certain division with a very quick glance.
Always wondered why new colours have never been fully introduced. A surgical green or white for Medical (I really like Nurse Chapel's uniform, for example) a nice orange for security?