The experienced midfielder made clear that his stance is not influenced by any lingering frustration over Bayern's exit, insisting his support is rooted in admiration rather than resentment.
A central factor behind Kimmich's decision is his desire to see Germany international team-mate Kai Havertz lift European club football's most prestigious trophy.
He believes that a major triumph on such a stage would significantly enhance Havertz's confidence and overall development heading into Germany's international commitments.
Kimmich also suggested that success at club level for Havertz could have wider implications for the national team, potentially strengthening Germany's prospects ahead of the FIFA World Cup.
He views a Champions League victory as a catalyst that could elevate performance standards within the squad.
"I wish Kai success so that he can join us after success. Such a title brings positive energy," Kimmich said.
He added: “He is an extremely important player for us and is underrated in Germany. At the Euros he was decisive, because he brings a fantastic overall package that will help us.”