So…how about old armour as a glamour?
My PLD ready-to-battle glam is composed by a circlet for the head, the Omega Savage V4 Body, Edenmorn Savage Gloves, 2Bs legs and High spikes-like boots from something from Heavensward, all in pure white. It’s a preatty good glam I came with before EW and it does not “break” the immersion for old-style-people who prefers middle aged armours.
A friend of mine has the Eureka Armour Set (final steps) for their all-tank glam in their Aura Male and it’s kinda cool. With an option to hide by default all glams on people other than you, you may miss armours that you may like. That’s bad.

Imho OP idea is stupid.
Before I travelled to other horizon regard the glam matter, I spent a lot of time trying to figure out the best glam for all my nineteen jobs which could resemble the best the idea I had for those jobs.
One of the most thing I found helpful was LOOKING at the other glams.
Some were cool as fuck, other a bit less and every person I met with their unique style, be in full armour or in bikini helped me a lot to build all of mine.
I’ve never came up with my cawgirl-cat style for my MCH if I haven’t seen a cat in Alha Migo dungeon with the Valentionne skirt (the one with the socks black and white, fucking amazing).
Or I never came up with my PLD glam if I haven’t seen someone with the same body armour in Eden Promise.
Or I’ve never came up with my bodyguard suite style for my GNB if I haven’t seen one of my FC members having a simili at style on.

This is why people glams, and thanks God XIV has a decent glamouring system, at least this.

And, by the way…do you know what this option implies, developing speaking?
I do not but I can guess SE should give to your client the option to display the original gear of everyone except you (I hope you are not so greedy to want a per character option to disable/enable glams) where the most of the game works server side.
We don’t even have the Blacklist working on client side.

if bikini cat girls and mommies femroe hurts your gameplay…then just ignore them.