That wouldnt bother a corparation like MS. Buiness is about where the money is, and the money is in the services/software not the hardware.
If GamePass earns 1m subs on Switch thats $12m a year the Xbox brand makes. Now multiply that by x2 and than by x4 and now add Xboxs own userbase of 1m subscribers and do the same. Add both results togother and do you see where the money is? Consoles wont make that sort of money. Infact for the first few years consoles are sold at a loss and there RND is in the billions.
This is why hardware sales dont mean much in the end. Not with online options we have these days.
In that case they could go full third-party.