Very late, but these wallpapers look cool.
Download them below:
Also, they are 4K so they should look GREAT!
The link [added 15/12/2021]: https://wallpaperhub.app/wallpapers/7827
Get the Windows Insider 6th Anniversary Wallpapers!
Updated: Dec 15, 2021
the black one is STILL my current wallpaper.
right-click on it and press "save image as"
I have the 1st one applied right now!