For those that still use Win7 AMD Has a driver update for Win7 users for all legacy GCN Radeon HD 7000 series and up to the RX 6900 series the latest of the RDNA2 series of cards:
https://www.amd.com/.../release-notes/rn-rad-win-22-6-1-win7
Many thanks to a good Richard L.R. from x-3dfx & 2CPU for passing this awesome news on to me
This driver runs great in Win 7 Pro x64 UK + SP1 and my Sapphire Nitro+ RX Vega 64: