We recommend re-enabling email signature synchronization with the Signitic Google Workspace connector.
From the menu bar, go to the Settings (cogwheel) page > Connectors
direct link: https://app.signitic.com/settings/connectors

Enable the Google Workspace Connector.

Choose the users to sync.
By default, syncing users (listed in the Workspace account) and signatures in Gmail isn’t active.
To turn on actual syncing of signatures in Gmail with the Signitic connector, choose … in the sync options panel.
To edit their signature, they just need one click; this short article you can share with them explains how it works: Manage my signature in Gmail