PS4 stuck trying to match me to a Microsoft account & Microsoft says I'm already linked to Minecraft. Can't log in! Is this Nether update related? Lots of similar complaints in Dec 2019. http://Help.Minecraft.Net perpetually asking me to CAPTCHA so can't post there @MojangSupport
I'm sorry you're having trouble! For technical help, please visit our Help site at https://help.minecraft.net/hc/en-us and for more details and help with the Playstation specific editions of Minecraft, you can also go to https://www.playstation.com/support/ . ^AS