@Astro-What
So the plugins are OK yet there is one specific plugin that prevents the save function?
I've tried to install some iframe or embed plugins recently and still have some installed and enabled even though they didn't work so I ended up enabling HTML altogether.
the google SSO does work after i added the .env vars manually.
I will try to uninstall anything I don't use and update here once I've found that problematic plugin
Thanks !