I understand the fact that people think that Frimino should be scoring more goal, and it is a concern, but if you look at the 2018/19 & 2019/20 season Frimino was setting up a lot of goal for both Salah and Mane and chipping in with a few himself. He is the main goal provider and goal enabler for Mane and Salah.
I think what a lot of you are missing here Is that even thought Frimino is not scoring as many goals himself he is still providing the opportunities for both Salah and Mane, but Mane in particular seems to be the one that can not convert his chances this season.
For me, Frimino's drop of in goal scoring form is a slight worry, and Mane drop off in goal scoring form is a major concern
Edit :- maybe we should be playing a Jota,Frimino, Salah front three, Player Mane with the reserves for a couple of weeks. Let him regain his goal scoring confidence again