Force issues from template

I’m a user on a self hosted gitlab. For some of my projects I want my users to create issues (bug reports, features) via my custom templates that I created in.gitlab/issue_templates as described at
Is it possible to enforce this?

I also noticed that you can use quick actions in these templates, but was wondering if you could also target specific roles in projects.
For example assign the bug to the maintainer of the project without hardcoding his name