I want Valve to encourage developers to use their branch tool like Witcher 3 did with the next gen upgrade to make high resolution assets optional.
There's no reason to have 100-something GB of assets on an 800p device. Same with languages. Support is awesome. Disrespecting my storage to pack them all without any way to cut out the waste isn't.
That's before the heavy duplication of assets for sequential HDD loads that I'm guessing hasn't disappeared yet.