the "All Good Things...(TNG)"/"The Visitor(DS9)"/"Endgame(VOY)" uniforms from the 2390s-2400s
Even though the Picard Series won't be focusing on a Starfleet crew, I have a hard time believing we won't see Starfleet at all and, when we do, I hope these aren't the uniforms they're wearing! I'm totally okay with "It was just a possible future."
The TNG pajama uniforms from Seasons 1 and 2 not as vociferously as I once did but they're still among my least-favorite. They don't look as bad on background officers and extras as they do on the series' main characters.
I think the Early-TNG Uniforms look more like athletic wear. But the TMP Uniforms? Yeah. Those are pajamas.