Is Salah missing any Liverpool games because of the AFCON? If so it wouldn't surprise to see him sit out this 4 game tourney in March, regardless of it being in a FIFA window. March is always a pretty crucial month in the EPL, and he may favour a little rest.
The Egyptians & Tunisians may even send squads of mostly domestic players, to keep Euro clubs happy, quad tourney being not that long after the AFCON.
https://www.stuff.co.nz/sport/football/nz-teams/133536527/chris-wood-and-mohamed-salah-could-clash-again-if-all-whites-face-egypt-in-march
The Egyptians & Tunisians may even send squads of mostly domestic players, to keep Euro clubs happy, quad tourney being not that long after the AFCON.
https://www.stuff.co.nz/sport/football/nz-teams/133536527/chris-wood-and-mohamed-salah-could-clash-again-if-all-whites-face-egypt-in-march