Nice try to expand wordpress

What does “more like tokens than fields” mean?

[author-name], [node-title] – These are tokens for sample

Fields are part of content type. . . so print content function should return all fields not only default 2.

Here you need to overwrite template or tell WP to display all content tokens in body area, where the goal should be overwriting/hooking content array displayed in template.

Have you tried Pods Frontier Auto Template? https://pods.io/tutorials/creating-pods-plugins/using-pods-display/