Concerning Big Sur 11.3 USB problems

It has been adressed in March by Dortania here :
https://dortania.github.io/hackintosh/updates/2021/03/01/acidanthera-march.html

The fix is to have your USB ports correctly mapped.
How to map your USB ports (You can do it with Hackintool too)

And don't forget to disable the XHCI Port Limit Quirk after in your config.plist

Kernel -> Quirks -> XhciPortLimit -> False

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Hope this helps the upcoming "USB problems on 11.3" posts ;)