While looking at some unrelated issues in the d.org queue for Token 8.x, I noticed a new setting in the UI, which we don't have:

This seems to have been added only in the 8.x version, with https://www.drupal.org/project/pathauto/issues/2773573
GitHub Issue #:
4755
Recent comments
Worked like a charm! Exactly what I envisioned... now I can edit the ruby text right in the editor, sweet:) Thank you! For those who may have a similar issue, try TinyMCE, create a new "text...
Specific tags to work in CKEditor 5
Yes, you can use TinyMCE on some content and CKEditor5 in others. There is no problem having both enabled on a system.
Specific tags to work in CKEditor 5
Thank you both for your suggestions. Yeah, I'll give TinyMCE a try... better than trying to fight that behemoth CKEditor 5. The TinyMCE page says it can "co-exist with CKEditor" which is...
Specific tags to work in CKEditor 5