Moreover, so far the player that Liverpool really relies on is Salah and he only has one season left with Liverpool, if Salah leaves, maybe Liverpool chances of getting the title will also be further away because currently finding truly great striker is very difficult.
Isn't it just a difficult opportunity to get the title every season? In the end, Liverpool failed and Manchester City remained champions in the EPL and won the title four times in a row and also dominated the EPL well, so in my opinion, even if Salah leaves, of course he won't. It also affects Liverpool's playing performance, even though he is always relied on to score goals, but actually Liverpool can still find players who are better than Salah. There are many young players who are talented and more productive than him. If later Salah leaves Liverpool and Liverpool gets players. The substitute then won the championship title, of course it will make all his supporters aware that all this time Salah was not a player who could really be relied on when playing at Liverpool. 
Salah has made a very significant contribution to Liverpool so far, so it is quite reasonable that Liverpool is often considered to be quite dependent on Salah. But doesn't Liverpool still have several other good players (like Cody Gakpo and Nunez who played well at the Euro and Copa America), and with that option, Liverpool should make changes so that their game doesn't just depend on one or two players. With a new coach, I think Liverpool will have the opportunity to change. Obviously, it won't be easy because they were probably already used to what Kloop instructed but, with a good approach and more time, I think the changes can become real.
Recently Salah has been met Arne Slot and he has give his commitment with Liverpool so that's why when Egypt playing at Olympic Salah won't be part of this team later but i think if Liverpool is really want to hold Salah i think they should be give him contract extension because we all know Salah contract will be expired on 2025 so if Liverpool is not interested to sell Salah then they should be prepare to give new contract however if we talking about the contract besides Salah it says Virgil van Dijk and Trent Alexander-Arnold contract also will be expired in the same year just like Salah so Liverpool should be more concern for these issues because they are Liverpool key players