@pastrychef OK, thanks. That was the guide(s) I was looking for .. I wasn't far of in my previous attempts but redid a clean SSDT using the beginners guide and cross checking with the other 3 guides. (I find the way to do it with MaciASL better than with Hackintool, BTW.)
I think/hope USB is configured properly now.
The only odd thing I noticed is that the red USB port and the USB-C connector port on the rear are not listed under XHC but under RP05. (You can see my headset and phone plugged in in the screenshot, but normally I don't have anything connected to them.) I also added my SSDT-template and commented in what ports I enabled.
View attachment 406054
I also realized
through this post that I had my case USB ports wrongly configured as external whereas in fact I think they need to be configured as internal (I think…) since they are connected via cable directly to the mobo (HS01-SS01/HS02-SS02/HS09-SS09/HS10-SS10).
Still, whichever way I roll it ... the same no-sleep problem with unchanged behavior however. Double checked BIOS settings as well (again) but there were no misconfigs there, and everything is set up as it should according to yours and various other Hero X build threads. So, I doubt it's sth in there that prevents the sleep.
TBH, I'm happy to let that sleep issue go now since I rarely use sleep. Anyways, the biggest problem from the 4, which I listed in my initial post, was the transparent PNG issue which was a pain on a daily basis .. and you solved that for me