copy backup job compression setting, source backup compressed with higher compression

[dcit]

If I have source backup for copy backup job compressed with compression level Extreme, but in copy backup there is set compression level Dedupe-friendly (or in general lower compression level), would copy backup job decompress that source backup and then compress it with lower compression level?

What about when compression level of source backup is lower than compression level of copy backup job?

[foggy]

Yes, the backup copy job decompresses data and compresses it according to its own compression settings.