Disney+, Netflix and probably some other streaming services won't install on beta software as it hasn't been Google certified yet. If Netflix was installed prior to the beta it should still work as long as you don't uninstall it. However, Disney+ was just released and probably won't function until the official Android 10 release. Some people have mentioned side loading the applications from other sources, but you always run a risk of malware when doing that. I'd just wait it out or watch on another device.
