Everyone's talking about MS, ABK & unions but I hope they're remembering this is exactly what the FTC (specifically Lisa Khan) called out as NOT something they are considering in this investigation, nor are other regulators. Anything involving unions, bringing games "cheaper" to gamers via Game Pass etc. fall into ESG territory.
ESG stands or Environment, Social, & Governance ratings. LOTS of companies have been making various changes (some good, some bad) to get higher ESG ratings so that they can not only look better in the eyes of the public (by appearing more progressive on social & environmental issues for example), but also because massive investment firms (i.e Black Rock, Vanguard Group etc.) and banks are willing to invest in & fund companies with higher ESG ratings.
Which in turn means more money for companies with higher ESGs, in one way or another. However, nothing about ESG actually factors in a company's financial performance in an open market. It is something used by investors who want to lead with non-financial metrics as determining factors for what companies to invest into, and many (actually, almost all) of Microsoft's appeals to regulators so far have been based on ESG metrics.
For regulators, whose main job are to determine financial impacts of a M&A in a market due to what amounts of resources may be accrued, and whether the accruement of those resources by said company can create (or have already created) a market environment that prevents competitors from being able to fairly compete with their own products as a direct result (i.e price dumping, price fixing, predatory pricing, etc.), these ESG appeals are of little pertinence.
Also, I found
this interesting on the FTC's website regarding exclusivity deals. They generally do NOT consider these as in violation of antitrust, except in instances (for example) where a manufacturer with a contract locks a provider from being able to deal with a competitor on the same or similar terms. In the case of the 3P exclusives that some blame Sony for in forcing Microsoft to buy publishers, Microsoft would have to prove in court that Sony have clauses that shut Microsoft out completely from being able to bid on 3P exclusivity deals, meaning they would have to force 3P publishers into those deals and prevent them even being able to go to Microsoft to see if they can get a better exclusivity deal from them.
However, Microsoft have not proven this, nor can they because such contracts are bound by NDAs between Sony and 3P partners. The only way Microsoft could prove anything like that is if a 3P publisher were willing to risk ruining a working relationship with Sony to do so on Microsoft's behalf. However, Microsoft already have one such publisher in Zenimax, yet have not provided proof to regulators. Most likely because said proof does not exist. Since ABK want to be acquired, that would be a 2nd publisher who could provide this proof, if it even existed, which given Microsoft have thrown the claims out there (at least in terms of Game Pass, not necessarily sure about Xbox itself), would make some think they have it either via those means or means where a 3P publisher has breached an NDA with Sony.
While it is probably true Sony have clauses preventing games from going into
Game Pass, that is because they view Game Pass as an extension of the Xbox platform, and the Game Pass business model undercuts Sony's own business model with those same 3P games they get co-marketing deals on (which are the ones that probably have the Game Pass exclusion clauses in their contracts). That is not a good point for Microsoft to lean on for the reasons already outlined, and regulators would agree that Sony have the right to such clauses if a competitor product would benefit otherwise in ways completely nullifying the financial investments they make in the 3P games for co-marketing deals (on the expectation the sunk costs are recouped through revenue from direct sales, which rely on providing the product at fair prices to customers in the open market). So again, Microsoft would have to prove Sony stipulate those clauses for games they
DON'T have any involvement in when it comes to funding, development or marketing, and if they do, they would
THEN have to prove Sony somehow stipulates clauses shutting out Game Pass anyway simply for any random 3P publisher or developer with a PlayStation license making games for Sony consoles.
Which I strongly doubt Sony have, because they would know that is obviously within antitrust territory, and is something Nintendo were already guilty of back in the '80s AND were successfully sued by the U.S government for in 1991 for antitrust violations. Unless these companies just don't keep up with precedents in gaming history, I doubt they would repeat mistakes that monumentally obvious.