I personally think we have enough at the moment. It's glamour plates and dresser space that really irritates me though. That's what we don't have enough of.

What I do to mitigate the lack of space:

Throw away whatever doesn't spark joy. You don't need to keep everything.
I'm a bit of OCD when it comes to inventory, I always throw away the excess and end up with less than one page of essentials in my inventory.

Whatever relic progress you're working on can go to your saddle bag. Or any item that's not essential that needs to be kept. There aren't many of that. Usually, just relic stuff.

Transfer some items from your dresser to armoire. You'd be surprised how much space you can save with it.

I have 2 retainers, one with an empty bag, and one with a bag full of relics. I own almost all complete versions of them. I can just get a duplicate from the vendor if I need to.