Are Chrome 'Other search engines' synced across devices when a user is logged into their Google account?
See: chrome://settings/searchEngines > Other search engines
Exploring the data that is currently synced by Chrome, it does not mention search engines.
Best Answer
Chrome 'Other search engines' appear to be synced across devices when a user is logged into their Google account.
This may be tested by creating a new user on the computer, and logging into the Chrome browser on a newly downloaded instance of Chrome.