For server loads .NET Core is better on Linux; if you want GUI then Mono. (Unless you do an Electron web embed for GUI or similar) Also Mono is full framework

For server loads .NET Core is better on Linux; if you want GUI then Mono. (Unless you do an Electron web embed for GUI or similar) Also Mono is full framework compatible; whereas .NET Core doesn't have the same api surface area as full framework (a lot of the Win specific stuff dropped, some older apis dropped etc). So it depends on the feature set you need also.