Collapsed code view different than code folding?

There is apparently a new “helpful” code folding feature which I can't figure out how to turn off.    At the top of each Java code window, the first line (or lines) of code, showing the class name, is fixed in place.   It's not the end of the world, but I would like to turn it off.   I've tried searching for how to turn this feature off, but since I don't know what it's called I can't figure out how to find the help for it.

Intellij version is 2024.2.0.2.