I've never seen that anywhere - across like 4 or 5 different universities and three countries. Even if it had happened why would it be at anything other than the end of the year or maybe semester for a single semester course?
I've seen it once (and well earned) - Imre Leader at the end of a one term course.
That's not a name I was expecting to see on HN! I haven't had the luck of taking one of his courses, but I discussed many interesting puzzles with him at a conference last year, great guy!
UCSD. Most of my professors received round of applause at the end of the final lecture. Pretty common practice here. Mostly in my stem classes. Didn’t really happen in lower division general ed. When you’ve been grinding through difficult math, computer science and other stem, a camaraderie develops, I suppose