This is likely a honeypot email sent by your organization. If you click any links, you'll be automatically signed up for a cyber security seminar. Go ahead and hit the report message button in Outlook.
Very few package maintainers even like providing packages written in C#/.NET. For example, the linux version of git-credential-manager (included with git on windows) is only available on gentoo, nixpkgs, and the AUR. There's linux builds in the github releases, but nobody will ship it.
In my experience, the only time a single person will cover most of or all of the bill is when they are celebrating something, like getting a promotion or moving to a new team.
Meanwhile anime: "I have made mayo. I am now your god."