All experienced Bubblers already know this. The consensus has been the same for a long time. If your app requires a strong SEO presence then use a service with better SEO. Then just couple your app as a sub domain or something.
Personally I don’t see the big deal with SEO for Bubble apps since the last thing I want is unmanaged traffic to blow up my WU. A front page on something like WIX that links to my Bubble app is so easy to pull off.