1. My point was about using upstream software, not about the Audacity flatpak specifically. Audacity binaries downloaded from upstream's website have the problem I mentioned.
2. The Audacity flatpak is maintained by a Flathub dev only because Audacity upstream has not expressed an interest in maintaining it themselves, not because of some Flathub policy to reject telemetry etc. If they wanted to maintain the flatpak themselves they would be allowed to do that, since Flathub policy is to have upstream developers maintain their flatpaks. And that would lead to the problem I mentioned.
2. The Audacity flatpak is maintained by a Flathub dev only because Audacity upstream has not expressed an interest in maintaining it themselves, not because of some Flathub policy to reject telemetry etc. If they wanted to maintain the flatpak themselves they would be allowed to do that, since Flathub policy is to have upstream developers maintain their flatpaks. And that would lead to the problem I mentioned.