GNU/Linux Installing Dotnet 5.0 Guide
Hi! The linked Tutorials Show You Step-by-Step How-to Install .NET 5.0 in GNU/Linux Desktops.
And .NET 5.0 for GNU+Linux is a Free, Cross-Platform, Open Source Developer Platform for building many different types of Applications.
Furthermore, with .NET SDK you can use multiple Languages, Editors, and Libraries to build for Web, Mobile, Desktop, Games, and IoT.
Again you can write .NET Apps in C#, F#, or Visual Basic.