Jamal Musiala is a young player who has very good abilities, he is a player who has very great potential, so it is impossible for Bayern Munich to easily release this player so easily.
I also read that Bayern Munich will hold talks about his contract, including Leroy Sane's contract. With this news, it is certain that Bayern Munich will keep this player for a very long time, or maybe as they say will keep Musiala for a very long time. Bayern Munich is not a team like Borussia Dortmund who will sell their potential players just because they want to make a profit, they are even willing to spend a lot of money to bring in very good players or keep players who have great potential.
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Sane has a contract that will soon expire, but so far Bayern Munich doesn't seem to have tried to extend Sane's contract, so this indicates that perhaps Munich no longer wants Sane in their squad, previously, Sane was linked with Arsenal in the transfer market last summer, but who know what happened so that Arteta didn't sign him, but it seems that Sane decline in performance is the main reason that Bayern Munich no longer wants to extend his contract, especially now that he often experiences injuries that force him to be absent for quite a long time.