I am using Windows 10 (22H2, 19045.5854) and Audacity 3.7.3. While a file is being loaded, clicking the “Stop” button does not do what it’s intended to. Instead, it makes the application completely unresponsive (“Not Responding”) until it loads the entire file nevertheless.
I can see that this has already been mentioned a year and a half ago, although they didn’t specify that Audacity becomes unresponsive.