I blame the Yanks: "In the United States, the words 'school', 'college', and 'university' are used interchangeably in speech when referring to higher education institutions."
https://www.mastersportal.com/articles/2711/whats-the-difference-between-college-and-university-in-the-us-and-uk.html#:~:text=In the United States%2C the,the most frequently used one.