The bookmarks that you sync on Google Chrome are stored on Google servers. This allows you to access your bookmarks regardless of the device you are using, as long as you are logged in to your Google account.
When you sign in to Google Chrome and enable sync, your bookmarks are uploaded to your Google account. This means that you can access your bookmarks on any device that you have signed in to with the same Google account.
If you want to find out where your bookmarks are stored on Google servers, you can simply log in to your Google account and go to the "My Activity" page. From there, you can click on "Other Google activity" and then "Chrome sync." Here, you will be able to see all the data that is being synced between your devices, including your bookmarks.
It is important to note that your bookmarks are not stored locally on your device, but rather on Google's servers. This means that if you delete a bookmark on one device, it will also be deleted on all other devices that are synced to your account.
In conclusion, Google Chrome syncs your bookmarks to Google's servers, which allows you to access them on any device you are signed in to. You can view your synced data on the "My Activity" page in your Google account.