Florida Circuit Court Judges can be removed at the recommendation of the Florida Judicial Qualifications Commission, and approved by the Florida Supreme Court. The FJQC has mixture of members appointed by the governor and voted in by other judges. I left Florida a long time ago so I don't know who are currently in the commission and court but the Florida political pipeline has always been extremely corrupt.
They'll most likely just appeal this ruling to at least stall it, but given that DeSantis has been outright removing prosecutors he doesn't like I would not be shocked if he started using the above system to remove judges next. This judge was appointed by Rick Scott by the way.