Our template is shared on the BIM server, but only to those that will be editing it.
It's a constant work in progress, so I keep the latest 'cleaned-up' version of it as a TPL in our project start up folder. The TPL is used to start a new project. It is then shared by the creator on the BIM server (if that project is to be teamworked)
This way I can be working on revising something in the template, leave it to work on other things and come back to it later and not affect anyone else that needs to use it to start a project.
AC 6-27 - Intel i9-9900K - RTX3090 - Windows 11 - 64GB RAM