Currently Alfred 4.6.3 supports web bookmarks from Google Chrome. However, it asks the user to explicitly select which profile the bookmarks should be opened in.
However, bookmarks are per profile. So Alfred should be able to open them in the appropriate profile automatically.
Also, when it does suggest such bookmarks, it would be great if it would show the profile in which the bookmark is found, as there may be different bookmarks with the same name across different Google Chrome profiles…