Offering to co-maintain Field Formatter Class

I've attempted to connect with the following via contact tab and slack on several occasions over the past two weeks but haven't received a response.
@andrewmacpherson
@Dave Reid
@mfer
@pifagor

Project page: https://www.drupal.org/project/field_formatter_class

✅ File an issue in the project's queue, using Support request as a category and stating your interest in becoming the owner, maintainer, or co-maintainer. Giving a link to issues for that project where you posted a patch or where you reviewed patches posted from other users demonstrate you are interested in improving the project, and you are actively involved in the project. Point out the motivation behind your request. (For example, you are already using the project and you want it to be well-maintained.) For the title, use Offering to maintain [PROJECT_NAME] or Offering to co-maintain [PROJECT_NAME]. (Replace [PROJECT_NAME] with the project name shown on the project page, not its machine name.) By putting the project name in the title, people reading posts via the global tracker will notice the issue.

✅ If enabled, use the Contact tab on the owner profile page to contact the project owner, asking to post a comment on the issue you posted. We need a comment on the issue you opened to make the decision of the project owner publicly visible.

✅ Put a record of the attempts to make contact in the issue summary, spelling out who, when, and how. This information is helpful when site moderators decide whether to act immediately or make further attempts to contact the maintainers.

❌ If the owner replies and sets you up as a co-maintainer or maintainer, the issue is fixed.

❌ If the owner agrees to make you the new owner but cannot change the project owner, or the owner agrees to your request but doesn't make any change, move the issue to the Drupal.org project ownership issue queue, by changing the issue's Project field to Drupal.org project ownership. To make it easier for the Drupal.org administrators, please include a link to the project page. If the owner privately agrees to transfer the ownership, ask for a comment on the issue you created.

✅ If the owner doesn't reply after two weeks, move the issue to the Drupal.org project ownership issue queue, by changing the issue's Project field to Drupal.org project ownership. Please include a link to the project page. The site moderators will normally try to contact the owner as an extra safeguard unless it is evident the owner is no longer active in the Drupal community. If the owner still doesn't respond, the site moderators will make a final decision about the request, usually giving the project owner two weeks for replying to the message they sent via the owner's Contact tab.