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A Quick Guide to Install and Play GOG Games on Linux
(itsfoss.com)
GOG.com is a DRM-free games and movies distribution service that is part of the CD Projekt Group. GOG.com is also a "sister" company to CD Projekt Red, developers of the Witcher series and Cyberpunk 2077.
Rules:
The screenshot in the article shows Epic, GOG, Ubisoft and Origin so I guess it covers some library integrations beyond just GOG. But ya, not sure about Prime.