no everything what you said is based on the internet, you didnt know facebook cant show non-account people post, you did not know facebook has no SEO, you dont know basic wishlist rules, you dont know anything. All of you said is a copy of what other people said, while i know through first hand experience. your words are just like this blog: https://www.gamemarketinggenie.com/blog/social-media-platforms-for-gamers
this: https://www.linkedin.com/pulse/how-scale-your-game-steam-eric-diepeveen?articleI...
this: https://partner.steamgames.com/doc/marketing/bestpractices
and this: https://www.marketconnectionsinc.com/whether-it-is-b2b-or-b2g-social-media-marke...
nothing you said is original what you did was fall for the common myth that every steam exclusive developers fell for everytime. Making your game exclusive to steam will not make you popular, rejecting other store fronts like itch.io or GOG wont make steam give you more money, facebook is the worst way to market anything. It shouldent be to hard for a newbie like you to find 1,000s of articles of people leaving facebook, boycotting their ads, scams, etc. Twitter, you can market twiiter, they have SEO tools and track each person post and embed them, facebook fails at basic SEO.
i know why you wont show your Steam sales, Valve has you on contract, i know you are legally not able to say what you sold and if you do it can mean your account can be banned. I know this contract from old contracts found on the internet, dont get so cocky about sales if you cant do it.