bug: Can't find downloaded podcasts

[talmage]

System Details
OS: Pop! OS 22.04 LTS
Arch: x86_64
Desktop Environment: KDE
Version: v3.2.1
Installed by: Flatpak

Describe the bug
Cantata appears to download podcast episodes. When the download finishes, the file isn't on the filesystem.

To Reproduce
Steps to reproduce the behavior:

1. Go to Internet
2. Click on a podcast series
3. Select an episode
4. Right click, then select Download Episodes.
5. Look for the downloaded file.

Expected behavior
I expect the downloaded file to be in the directory Music/Podcasts/Foo, where Foo is the name of the podcast.

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Version 2.4.2, which I installed using apt, doesn't exhibit this problem. It puts downloaded podcast episodes in the right place.

[nullobsi]

It looks like Cantata defaults to saving podcasts under ~/Podcasts and not ~/Music/Podcasts. This is an issue because the Flatpak does not have access to the full home directory.