Earlier quoted context omitted.
For modern .NET, you don't need to know anything about the legacy terms of Mono, .NET Core, .NET Framework, .NET Standard, etc. All you need is .NET 8 SDK. It's fully-cross platform and installs support for both C# and F#. For example, just download .NET 8 SDK on whatever platform, which is usually very easy on most platforms, and then run `dotnet fsi` to get into an F# REPL.
This is wild, apparently this stuff is in the Debian repos now? https://learn.microsoft.com/en-us/dotnet/core/install/linux-... So you can just apt install dotnet-sdk-8.0. This must be the most unfriendly Linux install documentation I've ever seen though, it was not easy to find the names of those packages.
It's been there for several years now, hasn't it?