I'll be honest, I don't understand the backlash from this. I mean, I get hating Epic. I'm not a fan of Epic either. But the point of the GOG Galaxy 2.0 is to integrate multiple downloaders from multiple stores. If you like GOG Galaxy 2.0 (and maybe you don't, but that's a different discussion) you're either buying games from other store fronts, or you have bought games from other store fronts. Now you can buy games you want from other storefronts through GOG Galaxy 2.0, as well as playing them. That seems a logical step, it helps bring GOG front-and-center: there are people who want, say, epic exclusives and will go to the Epic storefront to get them. Now, they can go through the GOG Galaxy store, and thus see GOG games along side Epic games, and perhaps buy a GOG game, and maybe GOG will get a small cut of the sale. It's integration.
"But GOG is promoting Epic!" You have it the wrong way around. GOG is not that big a mover and shaker. I would generously guess it's in third place behind Steam and Epic, as much as I'd rather that it was higher up on the list. Epic is allowing GOG to sell Epic exclusives through its GOG Galaxy storefront. Epic is promoting GOG. I appreciate that. Epic doesn't have to offer anyone access to its exclusives, and its offering them to GOG.
GOG was laying off people, what, a couple of years ago? I don't want to see GOG go under. They should be making money, and if this helps them make money, then it's a good thing. Ideological purity is not worth the defeat of the one store front that gives us our games DRM free. Yeah, I think the reason GOG was laying people off was because Epic was undercutting them, and I can see how this looks like a "defeat," but this is GOG adapting and gaining ground and becoming more relevant again.
And this is optional. Don't buy Epic games. I shifted entirely over to GOG once it started to have financial troubles, and I think a lot of us here feel the same way, which is why we're so passionate about it. I don't intend to buy any Epic games, but I don't begrudge the option of a client, whose whole purpose in life is to integrate multiple downloaders and store fronts, from having the option of letting you buy from other storefronts. Seriously. If you don't like the option, don't use it, but why would you want the option removed? You understand what the purpose of the 2.0 client is, right? And why it was a big success?
If GOG starts adding DRM to their storefront, then I think I'll join your mob, but acknowledging the existence of other storefronts is not something I see as a fundamental betrayal of their core principles.