People with issues are you using a Seasonic PSU? I was in the Aorus Discord and got this response.
The only thing that seems to have any validity to me is the "Fast Startup" settings.User=Intender (mod)
I have heard a few corsair supply issues but mostly seasonic power supplies
Also people put to much credit into powering on a power supply as a test of functionality. being able to turn on says nothing about its ability to maintain stability under load.
But I can confirm that there are Cold boot issues with Some ryzen 3000 cpus on x570. Whether support knows about it or not, I can't say. If people have problems but never make a complaint to esupport then they wont know. but I see them here and on the forums often enough that I would say it happens.
The cold boot problems that have not been related to seasonic power supplies are almost always people who unplug their systems at night. I think it probably has more to do with not disabling fast startup and when someone shuts down and unplugs fast startup causes the issue.