I just saw a nice storage hack using files of some kind to store tees on top of each other, now I can't find it again....
This link explains the method you are talking about, Cindy:
All I found
T-shirts are best stored by folding and rolling them up to place in a shallow drawer or have an extra dowel rod added to have another whole row to hang them up in the closet under your other clothes. We prefer the rolled ones. Even a shallow storage under the bed on wheels is easier than searching for the right T-shirt you want to find.
It's all in how you fold them! Search for Marie Kondo, her folding methods are the best. I use them for T-shirts which you can see here: https://thehoneycombhome.com/3-drawer-nightstand-decor-swap-sponsored/