Windows 11 Developer edition
To upgrade to Windows 11 at this stage you will have to be part of Microsofts’s insider program.
In Windows 10 open the settings app and head to ‘Update & Security’ and then ‘Windows Insider Program’
Select your Microsoft account and link to the insider program, the select the Dev Channel.
You will then be prompted to reboot to join the Dev Channel. After this reboot do a software update to pull down the latest test build of Windows 11
I have done all this on a Win 10 Pro VM running on proxmox to test on
