We've been playing around with how Markdown frontmatter can be your way of adding this data into notes that can later be used with other tooling parsing the YAML frontmatter (pods, scripts, etc.). Example:

markdown
## Daily Tasks
- Meet with @seadude (or [[user.seadude]])

YAML frontmatter can then contain extra info in the user note

yaml
title: Seadude
social:
  discord: 'seadude#7058'
  github: ...
  website: ...

Could do the same with task notes, such as the Dr. Appt table you showed, where you can just wikilink to a task note that contains all that information in the frontmatter.