So in the report by Meta, they go into a little more detail. One post in particular claimed that Fort Detrick is the origin of Covid. Fort Detrick is located in Maryland, and a quick google shows that it hasn’t worked on biological weapons since the late 60s.
Closest I can think of is the Dark Messiah of Might and Magic game from 2006, from Arkane (who later went on to make Dishonored and more recently Prey and Deathloop). First person, you pick your class between Fighter, Wizard, and Rogue, and most of the combat involves figuring out how to use traps, physic, and magic to kill your targets. Lots of ledges to kick monsters off of or spikes to knock monsters into, or creating ice on the floor as a wizard to make enemies slip to their deaths. Holds up pretty well for a 15+ year old game.
Nothing is stopping existing owners from downloading the offline installer backups, but existing owners will still have access to their games through GOG regardless. Delisting just means that the games will no longer be purchasable, so if there’s a game you want to “own”, as long as you buy it before it’s delisted, it will remain accessible to you for the foreseeable future.