I do genuinely dislike their game launcher, but also I don't want to have multiple game launchers even if it was working well given it's just overhead.

I'll happily pay to have a game on Steam vs getting it for free on Epic. Steam has been a good experience for me the past 2+ decades :)

I'd love to see governments decouple distribution and production in media - roughly, let any streaming service serve any tv/film, let any game service serve any game ... consumer's choice.

It would be under a 'most-favoured nation' type deal, after an initial launch period (exclusive distribution for 1 year, say) if my distribution service pays the same per-view amount then I can stream/distribute your media regardless of your deals. If a producer/creator makes a work available they are required to allow it on other registered channels (no setup cost beyond actual price of downloading the content).

Essentially make rights holders honour the idea that they'd make works S available if only people would pay.

Refuse to make a work available and you'd get a warning, then it enters the public domain. The copyright deal is "things enter the pubic domain after a limited monopoly to allow recompense", enforce it. So, if eg Netflix/Sony/BBC/etc stop offering their back catalogue then the works enter the public domain.