This repository is a project template for standardizing labels, templates, and the like across projects.
This project still misses a mechanism to automatically apply its labels to another project without creating OAuth-Tokens that grant third-party-repositories write access to GitHub data.
However, implementing a custom solution that generates and uses OAuth-Tokes that grant this project write access to GitHub data is acceptable.
At least using this project as a template enables a more effortless experience of setting up projects complying with GitHub's community standards.