The Times writes about this.
According to the newspaper, Zelensky, under pressure from “international partners,” had to refuse Zaluzhny’s resignation.
“Zelensky fired the commander-in-chief of the Ukrainian Armed Forces, but was forced to reverse his decision after pressure from the highest military command and international partners,” the article says.
Earlier, the NYT stated that the Ukrainian authorities postponed Zaluzhny’s dismissal due to an information leak.
There was also information that Zelensky offered Zaluzhny the position of defense adviser.