Cavalary: And you see that ZP got delistings as well more recently, including all of a publishers games.
GamezRanker: They still don't seem to get them as fast as gog has been getting them of late.
Case in point. Do they even commonly announce delistings like this when it happens on Zoom Platform? Would you even know a game is gone from there if they didn't?
Also, GOG has about an order of magnitude more titles than ZP seems to (I counted through the [stupid dynamic-loading, infinite-scroll] alphabetical full catalogue listing over there until I got to about 500, and I was already in the "M"s), and probably several times more partners that they contract with for games than does Zoom Platform. Almost by definition, GOG's going to have more contract expiration situations to deal with. Kind of like how a country with a population of 1,000,000,000 is going to have a lot more deaths than a country with a population of 1,000,000. Proportion matters more than absolute numbers. (And in both deaths and delistings, cause and other details matter a great deal, too. Unfortunately, we often can't know the reasons for the delistings, so determining the significance of most is next to impossible from the outside looking in.)
As far as I'm concerned, it'll only be worth getting alarmed if the
proportion of games currently on GOG starts to drop precipitously, or if they start losing all titles from multiple major, long-term partners like THQ Nordic, Bethesda, Activision, etc.