TBH the suggested order is not to have Highlight Compress at all now, and just use the ACES OT instead. The new default stack is super useful in that regard, with the most used operators included in the most useful order.
Beyond that, it really comes down to "put it where you like the result". There are technical things in there, like if you Highlight Compress you are clamping some of the high values down, and thus limiting what things like Curves or ACES OT or LUTs can do as the full range of the image is no longer present, but in the end it is still "Do you like the result with it there, in that place? Does it give you the control you need to adjust things?" and if the answer is "yes" then it's fine :)
