There are gui frameworks made by the community as well. Avalonia has picked up steam since it supports Linux and has been around for a while. Documentation is l

There are gui frameworks made by the community as well. Avalonia has picked up steam since it supports Linux and has been around for a while. Documentation is lacking and I can never get it to work the way I want but I suspect that's more my fault than theirs. Uno is another cross platform C# gui framework. I gave up on C# gui apps before I ever tried it out, but it looks good.