github.com/containers/podman/v5@v5.1.0-rc1/docs/source/markdown/options/compression-format.md (about)

     1  ####> This option file is used in:
     2  ####>   podman manifest push, push
     3  ####> If file is edited, make sure the changes
     4  ####> are applicable to all of those.
     5  #### **--compression-format**=**gzip** | *zstd* | *zstd:chunked*
     6  
     7  Specifies the compression format to use.  Supported values are: `gzip`, `zstd` and `zstd:chunked`.  The default is `gzip` unless overridden in the containers.conf file.