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Welcome to the age where you own nothing! If it's digital and not accessible offline, on your own device, you can lose it on a company's whim. This is one of the major arguments for piracy: it's often the only way you can "own" digital content.
Not like they will encrypt the downloaded version.
So here is the FTFY:
If it’s digital and not accessible offline, on your own device... and can't be played anywhere without the accompanying software (music streaming and youtube for example) ... you can lose it on a company’s whim.
TLDR: If it ain't an MKV/MP4/AV1/FLAC/MP3, it aint real.