Syncing a Title: field in the YAML frontmatter works for me as well.
I currently have the following YAML frontmatter in a common template:
---
Title: 202103141624
Summary:
Tags:
Note Type: #NoteType/TBD
Created: 2021-03-14 16:24
---
So having an option to sync the first H1 heading (within the first # lines), or sync the specified YAML tag (e.g.: “Title:”) would give lots of flexibility.
Mike