Seriously? Max 2 slots for all armor pieces?

Best I can find is 2 for body (in & out) and legs then 1 on the face, head and feet so down from a max total of 20 to 9. This is on both Rare and legendary gear.

Yes, they changed that with Patch 1.5 which is total bs. CDPR's reputations decreases again, and again in my eyes.
There's literally no benefit in having legendary clothes right now. Since a lot of epic gear looks better anyway, there's no point in wearing legendaries, not even the armour is higher.

Also, legendary items are in the random-item pool too now, so you might even not find them at all.

then update it lol

Yeah, but this is only because the missing mod slots are being taken up by a junk mod called Me-Thrill that you can't remove.