Fixed grade papers in general is out of date....
!
If you are asking "multigrade" is in all darkrooms! I remember a situation short after multigrade was introduced! Some asked : "Do you use multigrade - I am not sure if it is indeed better?"
This was 1980!!!!!
with regards
PS : Hart to say if there is paper for "lith" avaible with fix grade - may be not!
Special if you want to have "warm tone" that could be a Mission impossible in 2019
I remember price explosion of Ilford special Deluxe fix grade after cheap offerings a years before!
That was the time fix - grade papers became a niche paper and that was in 2007
!