EGS doesn’t require the client, you can simply run the EXE.
Steam games most commonly use Steamworks DRM, which is so easy to bypass it might as well not exist.
That’s beside the point, however. GOG doesn’t sell you games, but licenses. Playing the game after your license has been revoked is copyright infringement, and no different than using a cracked version. DRM is another topic entirely.
EGS doesn’t require the client, you can simply run the EXE.
Steam games most commonly use Steamworks DRM, which is so easy to bypass it might as well not exist.
That’s beside the point, however. GOG doesn’t sell you games, but licenses. Playing the game after your license has been revoked is copyright infringement, and no different than using a cracked version. DRM is another topic entirely.