Just did a GOG survey that focused on the idea of a paid membership option on GOG. Seems they're determining what people would be willing to pay extra for. Some of the options were
- a tool for backing up offline installers
- ability to install previous versions of a game
- extra insight into the preservation work they're doing.
- voting rights on games to bring into the preservation program.
And others that I can't remember.
I'd love a gog galaxy client for Linux with proton support. I also agree though, that it probably wouldn't help them become more profitable.
You do know Heroic exists, right? It works perfectly fine.
And I prefer an open source solution integrating multiple platforms to a single closed solution per platform.