I read it somewhere awhile ago. You're killing me asking for a source, goddamn.
EDIT: somewhat ironically, here's a Reddit thread where a developer says they are a part of the affiliate program, so, I don't know much funding that brings in. It sounds like a less formal arrangement than I was imagining:
Yes, that's what I thought: It's just affiliate linking (aka marketing) that any app can use, not a partnership between Heroic and GOG. Thanks for following up and confirming it.
Quoting /u/imLinguin in the post you linked:
Heroic dev here. We are just part of the affiliate program since we help people access GOG on Linux easier. There is nothing more, so there is no need for official announcements from the GOG side.
Better UX until you have to download or update a game… there is an open bug report where it just doesn't progress but keeps starting new processes until you‘re OOM. Still no fix in months, I've had to boot into Windows for every single update. Really not that good of an UX.
Hm, if it spawns some external process, would it be possible to wrap that in a shell script of the same name (and have its dir earlier in PATH), which in turn calls the other one, but through trickle?
I wouldn't call HGL a better UX. It straight up doesn't work for me. When it did, I couldn't get games to install or update and had to DL manually in browser, install into some other Wine prefix, and then manually move the files to an HGL-generated prefix. The UI looks nicer but it's not nearly as straightforward as Galaxy's. It's more like Lutris in its complexity, though I imagine there's no easy way around that.
Better UX is a big word, as any unofficial launcher it kinda sucks because it doesn’t have a specific feature set. Besides, first party support is always better