Click the three dots in the top-right corner of your browser, hover over "Bookmarks," and then select "Bookmark Manager." Alternatively, you can press Ctrl + Shift + O to open it directly.
In the Bookmark Manager, click the three dots in the top-right corner of the page, then select "Export bookmarks."
In the Bookmark Manager, click the three dots in the top-right corner of the page, then select "Export bookmarks."