which is only a year away, allows Liverpool to sell him to Bayern Munich, while Salah I think his conditions are more complicated than Mane, although Salah intends to stay at Liverpool but so far contract talks have not reached an agreement because of Salah desire a salary raise, and I think if Liverpool still want Salah to play for them next season of course they have to increase his salary, but if not then Liverpool will be at a huge disadvantage by losing one of their best strikers later.
at least there is still one year of Salah at Liverpool. if an agreement for Salah's new contract is not reached. then there is time for Liverpool to look for another good striker. But the loss for Liverpool is Salah's status, which will later be a free transfer if there is no contract extension agreement.
Liverpool is certainly considering Salah's desire for a raise. because Mane was also one of Liverpool's best players and eventually had to be released to Munich. if both players have to leave Liverpool. then it must be replaced as soon as possible. if not next season Liverpool probably won't have much to say.