Description of problem: As part of https://fedoraproject.org/wiki/Changes/BtrfsTransparentCompression, we need to mount Btrfs filesystems with compression enabled on Fedora variants that default to using Btrfs. Ideally this can be done via configuration files, but we might have to hardcode the overridden options for now (in which case we will do that in Fedora only, pending a general solution upstream) Version-Release number of selected component (if applicable): python-blivet-3.3.2-1.fc34
Per the comment in the pull request, it's insufficient to change this in Blivet.
Edit: we'll likely need to carry this in blivet in the short term, while working on a permanent solution with the Anaconda developers https://src.fedoraproject.org/rpms/python-blivet/pull-request/8
Updated PR per discussion with the Anaconda/Blivet teams, this time making it toggled by a new Blivet flag that Anaconda will set https://github.com/storaged-project/blivet/pull/932