When we heard about Tuchel leaving Bayern Munich some people were happy to see these events because Tuchel didn't have good relationships with some players in Bayern Munich and especially with Joshua Kimmich. Joshua Kimmich is not a bad player but he doesn't have a good relationship with Tuchel and since Tuchel is going to stay in Bayern Munich, Joshua Kimmich prefers to leave the team.
It seems nothing is clear about the next season for Tuchel and Bayern Munich so if he stays there, Joshua Kimmich will leave.
Some teams like Arsenal and Liverpool are also linked to this player and they are ready to send offers for Joshua Kimmich.
However, there were some other offers from PSG and Chelsea for this 29-year-old player but he rejected these offers.

But if Thomas Tuchel leaves at the end of this season, will Joshua Kimmich still leave the Bayern Munich club? even though the essence of the problem is that the coach and the player have a conflict and if Thomas Tuchel leaves it means that Joshua Kimmich's problem has been resolved with Thomas Tuchel and he can play again in peace at Bayern Munich, while his contract at Bayern Munich still remains until next year. It would be better if he will continue to stay at Bayern Munich if Thomas Tuchel is no longer coaching Bayern Munich and it looks like Thomas Tuchel will also not be retained for a long time by Bayern Munich because he has failed to bring Bayern Munich to the Bundesliga title and if Bayern Munich also fails in the Champions League it is very likely Thomas Tuchel will only end this season.
It is true that there are several clubs who are interested in bringing in Joshua Kimmich but this is still uncertain, but if Joshua Kimmich is not willing to sign his latest contract at Bayern Munich then it would be better for Bayern Munich to accept an offer from a club that is interested in him because Joshua Kimmich's contract at the club only has a short period left. Do not let Bayern Munich cannot make a profit from its investment in this player, and Bayern Munich can also still look for a better midfielder in the transfer market to replace Joshua Kimmich.