Good morning Max,
Over all these years, I've seen 100s to 1,000's of post recommending people to use external powered USB hubs.....
I guess it is because for reasons like people have used cheaper Motherboards, or use a whole lot of extra USB devices or other things.....
Me personally, I have never found a need or use for an external powered USB hub...but with that said I have always used ASUS' top of the line or near it Motherboards... Regardless if I'm building an INTEL or an AMD system...
I use the same hotas setup as you do and I've never had no USB issues... I've suspected that I might be having 1 or 2 inn the past, but after trouble shooting the problem , it was always some simple solution I had overlooked, because the fix was so simple/easy and my brain was smoking looking for something worse that wasn't there, LOL....
Currently, I am using 8 devices plugged in to my USB ports and sometimes 9 to 10 if I'm transferring files from my phone or using USB stick drives....
Hope this helps
TC