• Make the module-level _wrap_text a text method instead, and don't make
  it yield anything as it is modifying the text object in-place anyways.
  (This avoids having to wonder where other textobj attributes come
  from.) Removed this as I realized there's an even simpler way to handle
  it, but would be better on top of Make Text._get_layout simpler to follow. #12951.
• text._usetex is never None because set_usetex already replaces
  None by the rc value, so we don't need to additionally validate in the
  getter.

Preliminary work towards fixing #13139 (comment) (#12951 would be needed too to avoid a rebase).

PR Summary

PR Checklist

• Has Pytest style unit tests
• Code is Flake 8 compliant
• New features are documented, with examples if plot related
• Documentation is sphinx and numpydoc compliant
• Added an entry to doc/users/next_whats_new/ if major new feature (follow instructions in README.rst there)
• Documented in doc/api/api_changes.rst if API changed in a backward-incompatible way