The blend gamma of a live procedural texture filter gets ignored.
To reproduce,
create new file 256x256 RGB/8
add PT filter: B=x/(w-1), A=1
add PT filter: R=y/(h-1), A=0.5
adjust blend gamma of top layer: no effect.
a/b test: convert top layer into pixel layer (merge visible while bottom layer inactive). Adjust blend gamma of pixel layer: visible effect.
Tested of Mac m1