When most games in the same over saturated genre on pc are sub $10 you tell me why it’s is worth it….
This. Most people, especially on PC that is with low or mid tier hardware, don't want to pay for production value, they pay for fun first, then for content, and somewhere down on a long list for the production value. This is a clear trend when looking at reviews of all these game. Just look at how many people are playing Dwarf Fortress or Rimworld. The majority couldn't care less about top notch voice acting, directing, state of the art visuals. They appreciate all extra and premium feel, but it's not the priority and they won't pay for it unless it's a well-established brand and is not a niche game and is accessible for the broadest audience.
There's no denial a lot budget went into Returnal, but most of the PC crowd don't see these values as important when it comes to re-finance that financial effort with a high selling price.
Returnal looks like AAA game and probably cost as much to develop, but mechanically it's on par with games you get for 20 bucks and less, not including discounts. Some people are willing to spend more for that AAA feel, but not 60 EUR for a brand new IP in that genre.