The PC(Windows) version of Carcassonne and Ticket to Ride are available for free this week (Feb 6th to 13th) on the Epic Games Store.
Literally no reason to not add them to your library atleast
You can download them here: https://www.epicgames.com/store/en-US/free-games
Originally Pandemic was also supposed to be available, but it’s absent now. Best guess is that it was removed due to the possible bad PR given the recent Coronavirus outbreak.