youtube-dl-2020.03.24-1.fc32 is still in testing. The reason you probably got the package before and then it reverted is because during Fedora’s development cycle the updates-testing repo is enabled until a few weeks before the GA release. So previously on your f32 silverblue system the updates-testing repo was enabled and it got the newer version of
youtube-dl. After the
fedora-repos package in f32 was changed to disable the updates-testing repo by default then the rpm-ostree transaction doesn’t see the newer
youtube-dl as an option.
If you’d like you can re-enable the updates-testing repo by editing the
/etc/yum.repos.d/fedora-updates-testing.repo file and changing
enabled=1 for the
updates-testing config entry. You’d probably want to change this back after the newer package makes it to stable.
Please do add positive karma to the new bodhi update so it will go to stable as soon as the Fedora 32 repos are unfrozen.