Bookmarks are simple enough, as long as you have both browsers installed. I haven't found a way to sync them by logging in with Google, but locally stored bookmarks work. To do this:

Go to settings

Type 'Browser' into the search bar

Under 'Default browser' there should be a button that says 'Import bookmarks and settings'

Click it, select the browser to import from, and select what you want to import

I know it's not what you originally wanted, but at least it's a partial solution.

Hope it helps! 🙂