There is a EULA but also notices in this https://opensourcemaintenancefee.org

This is adopted at least by:

• https://github.com/wixtoolset/wix/blob/fddc154029b838c2fd83a2eee09d53468dd4cf08/README.md?plain=1#L14

There, this is a rider on the original ms-rl license.

See also:

• https://github.com/opensourcemaintenancefee/web which does not seem to have a license
• https://github.com/wixtoolset/wix?tab=readme-ov-file#open-source-maintenance-fee seems to say that posting an issue requires to pay which would be a violation of GH ToS