I will say, if there is a game that Fanatical will eventually bundle, at least 20 times, it will be Doom Eternal. The Bethesda games are basically the only AAA game publisher that ends up on Fanatical bundles.
Probably b/c Microsoft owns Zenimax/Bethesda and they really want to get their games everywhere on PC & Xbox.
Especially given their war w/ Sony over M$ buying Acti-Blizz and trying to get that approved, Sony gating some games (3rd party stuff) from not hitting Xbox consoles ever (i.e. newer Final Fantasy games), and other stuff - yeah, I could see M$ doing this (flooding the cheap markets) to get gamers to play their old stuff....so they want the new stuff, which they'll make exclusive. Gotta built for their future, right?
This could cause some gamers to ASAP join Game Pass, buy games ASAP on PC or Xbox console, or move some Sony-gamers flat-out over to PC or Xbox consoles - namely to play say future COD games, Fallout 5, Starfield, Elder Scrolls 6, Wolfenstein, Doom, Diablo, Deathloop/Dishonored universe, Redfall, Gears of War, Fable, and/or anything else 1st party that they own which they could make sequels for...and make those ALL exclusive.
It's like M$ is tossing everything into Humble Bundles, Amazon Gaming Prime, Epic store freebies, Fanatical Bundles, and more - to swarm the market w/ their stuff dirt-cheap or free...b/c they will have new stuff, new sequels, coming they want you to buy or sub to on Game Pass ASAP; or cause you to jump-ship to PC or Xbox console.