I haven't seen any news about players and their teams having conflicts with regards to cutting their salaries where they aren't playing, Juventus, Milan, Inter all have agreed to cur their salaries ever since the league was suspended and even some top flight clubs in the EPL as well as LaLiga have cut the salaries of their staff and players. The main issue right now that I see with Serie A is regarding how hard are they trying to resume the league when in fact Italy hasn't even recovered yet from this pandemic, some of their players not a resident in Italy are on their home country which just shows that these players are not even ready to return back to play.
At the moment only the agreement between Juventus and Juventus's player is official, the rest is only speculation and nothing official.
I'm sure the rest will follow the example of Juventus but for the moment nothing is official.