This thread was about 4.16 and doubtful has anything to do with the current release.
In any case I gave up on hot reloading long ago. I still use it if I want to test a quick change in the file I’m currently working on. However I find that as your project grows and you start adding modules and moving code to plugins hot reloading becomes increasingly unreliable. As in it would compile and play fine but doesn’t include all the latest changes. So it can not be trusted to be accurate picture of your current dev status.