The only exception would be the Artifact outfits for combat Jobs.
Every gear tier we have received so far is usually 3-4 unique sets with minor variations over the jobs. Most commonly it is caster/healer that shear, but often enough it's completely random.
As seen with the latest gear from Eden where DRG/Ranged, Melee/Healer and Nin/Caster.
A list of Tomestone and raid gear role sharing.
Allied seals: Melee and Ranged share, all others unique.
Ironworks: DRG shares with MNK, NIN shares with Ranged
Hellfire: Tank shares with MNK, DRG is unique
Shire: Tank shares with DRG, MNK with NIN
Gordia: DRG and MNK, NIN and Ranged
Midan: DRG/MNK
Alexandrian: DRG got Tank shoulders but MNK body. Nin shares with caster, ranged with healer.
68 vendor (new and unique to SB): Tank shares with Healer. They recently added a version for caster too.
Deltascape: Tank/Ranged, DRG/NIN, Caster/Healer
Sigmascape: Tank/NIN, DRG/Melee, Ranged/Caster/Healer
Alphascape: Tank/DRG, Ranged/Caster, Melee/Nin/Healer
Not to mention the gear tiers that looks almost the same across all 5 roles such as the Shisui, Nomads and plenty of others as well as Job specific gear that becomes vendor/crafted such as DRG's lvl 50 hussar outfit which got a craftable version for all jobs at 52 and MNK lvl 50 fistfighter which became lvl 52 vendor gear.
Lastly there is the Tomestone/Seal gear that become leveling vendor gear such as the Ala Mihgan sets now found as Zonureskin/Ovim with some of the skins swapped about.
All in all the glamour restrictions are superficial, no one are bothered about a tank running around naked with the snowman hat, and no one will be bothered to see a healer in full plate painted black.