If they're embedded iframes, you should still be able to use e.g. adblock based on the URL. If not, you can probably go back to element blocking, same as now f

If they're embedded iframes, you should still be able to use e.g. adblock based on the URL. If not, you can probably go back to element blocking, same as now for static containers. If they're invisible / removed from the DOM tree, it should be a lighter weight browsing experience :)