Nothing from Gigabyte yet on the B550i board. I'll give it a shot when it's released. ASRock just released the 220.127.116.11 for my other B550 board. Not holding my breath for a quick release of the 18.104.22.168 on that one.
Newest ASUS Dark Hero bios update with the USB fix seems to be working. I didn't have constant USB drops but would only occassionally lose my HD60s+ where I'd just have to re-plug it in and it'd be fine again (something like once every 3 weeks)