I added a Custom filter to under the Privacy tab in one my Macs to block Google's Sign In "popup" in 3rd party apps, but when I went to the other Mac the popup was still there. I opened Settings / Privacy / Show Filter Lists... and noticed the custom filter wasn't there.
Mac with it set:
The text box was empty on the second Mac and the Custom Filters checkbox was unchecked.
It would be great if the custom filters synced between devices.
0.99.126.4.1-beta
Sonoma (14)