Items in gear sets do not take up inventory space. I watched the same videos and read the same posts. Nothing has changed.

Furthermore, being that retainers are gaining 25 slots each as well as 10 more bazaar slots, we"re gaining 35x2= 70 slots. Losing 100 inventory and 10 bazaar slots on the characters themselves, so -110.

70-110= 40 total storage slots lost.

That's before counting how equipped items and gear sets don't take up inventory. Once you consider that it turns out that we're basically the same on storage, but a hell of a lot more organized and convenienced.