I would really like both template sites to be listed in the site design menu when creating a new Team site (see example for communication sites below):
However, all I can find here is to configure a site design, which entails only applying a custom design and maybe some lists, but does not go as far as a completely pre-configured site (template).
Can you please advise if it is possible to add a "site template" in the site design menu (so it includes pre-configured pages, lists with content etc.)? And if not, is it possible to add a custom site template in a less cumbersome way then explained in that website? Maybe with a powershell command with a reference to an existing site to use as template?