Awesome
xamarin-forms-android-linux-project-templates
It is rather samples than templates.
Build sample using the template:
Build sample using the ConferenceVision application:
https://github.com/igorkovalchuk/ConferenceVision/tree/linux-build
Other:
How to build and run a simple project: https://youtu.be/YXTzPib9r1w
How to change the project files for VSCode: https://youtu.be/PTGbNkgXNiM
And for MonoDevelop: https://youtu.be/E5vU8MnV1YE (not actual at all)