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2K Launcher has been removed from Civilization VI on Steam and will not be used for Civilization VII
(store.steampowered.com)
Steam is a video game digital distribution service by Valve.
Steam News | Steam Beta Client news
Useful tools:
SteamDB
SteamCharts
Issue tracker for Linux version of Steam
Steam still lists Civ7 as requiring a third-party account and stays off my wishlist while it does.