Thank you for that! I did think this was what you were asking but wanted to check for certain.
The only thing I do know that will help is keeping the nails short. You may already be doing this.
The nails on Rex buns are normally pretty obvious due to their short coat, so they are not hidden under fur. That can make them appear long also. If the quick in the nail has become long, then lots of regular trims will help to get it to recede and you’d be able keep the nails as short as possible. When too long, they’ll curvw and even start looking warped and growing outward.
Also, I don’t now if this would help but it wouldn’t hurt, in my opinion.. You could place some things around that she might rest on, as in, drape her self over. lol. So things like a tightly rolled up towel or blanket or a bolster pillow if she isn’t one to destroy items like that. You’ll sometimes see photos of rabbits propping themselves up on such things. Or even on their bond mate.
I don’t know if it’s to help them relieve weight, ease the tummy at times or something they just enjoy doing.
I once read a comment about providing some uneven surfaces for rabbits, more like they would encounter in a natural setting. It made me really think. Im not really sure how you’d create something like it. A pile of blankets in the corner? They can shove it around and arrange to their liking perhaps. My original pair took to hanging out on a bean bag. Until a year later when they suddenly decided it should become a toilet.
Just writing this, Im thinking of one of my buns that has a tendency to sit oh a ramp. And nap in the litter box. I wonder if the ramp help his weight pitch his weight forwards a little?
Anyway, the flooring you’ve provided for your girl sounds as if it is absolutely helping, I’m not suggesting change that at all. Just maybe experiment with adding in some spots to see if she gravitates to them as preferred resting spots.