GTA VI could get a 75 metacritic score and still make a billion dollars in three days.
Personally, I never consider metric scores or reviews. I'll take a recommendation from any of you here before I go with a metric score or "professional" reviews.
IMHO, games sell because of a huge established fan base. I suspect ER sold because millions considered it DS4 and From has a loyal fan base built over years of great games that never disappointed their core gaming market; namely, Bloodborne, Sekiro, the DS series. Not a single bad game amongst them and all true to their principles.
Likewise, GTA's fanbase, as I'm finding out, is probably even larger. Then, you add in the RDR2 fanbase and a beloved title which minted over 50 million copies. There's no question their next game will fly off the shelves, it's just a matter of how many units and if the game will meet expectations.
While personally I have no interest in Nightreign or any live service game however one dresses it up, on day one Steam count hit about 330K concurrent players. This translates to about 2 - 3 million units sold? For a lesser studio, I suspect they'd be popping champagne, but, in my view, from From's perspective, it's just par for the course. SOTE minted 5 million units sold pre-order.
However, what is true when I was a teenage gamer so many decades ago and still rings true now is you have to deliver. I'll buy the next From and Rockstar game because of my prior experience, at whatever their asking price, but if they fail, then I won't for the next one. It's that simple. You have to keep delivering--it's the free market principle and reality.
Case in point. After experiencing that Ninja Garden game using rainbow colors for blood, I will never buy another Team Ninja game unless it's recommended by a fellow gamer or have Steam's 2 hours to make sure they didn't resort to whatever drove them to make use crayon for blood.