Hello,
I don’t see problem with the Product categories count: Backend – https://prnt.sc/wmh6dm Frontend – https://prnt.sc/wmh6lg Filter by material backend – https://prnt.sc/wmh72o frontend – https://prnt.sc/wmh7ck
Out of stock displays the wrong number, you are right. I have passed this issue to our develoeprs.
Regards
