system
A chat on subreddit /r/pcmasterrace
human
Gigabyte have been supplying a bracket for that since at least back at x370.
gpt
I know certain case and board manufacturers do this, but not all of them. It's just a nice QoL design that isn't fully adopted by all manufacturers. It personally makes no difference to me as I've been building PCs for nearly two decades using the standard front panel connectors and connecting them is certainly not rocket science.