I still plan on getting a 3080 and a PS5. I don't really see any compelling reason to get a XSX and upgrade my PC, but I am also extremely fond of the XBox brand and ecosystem, and have literally hundreds of games on XBox - it really seems unlikely that I will not get the XSX, it just also doesn't seem to make sense to do it?
The other option would be to get the XSX/PS5, and keep my 2070 powered PC for what I call PC "exclusive" games - grindy stuff, RPGs like Baldur's Gate 3, space sims, etc.
If I knew for sure XSX games were going to be 4k60 or offer 1440p@60/120 I would be pretty tempted to do that for non PS5 exclusives/Sony-marketing led games like Black Ops Cold War.
I am very torn.
EDIT: I think what really influences my decision is that I do almost all gaming from the same desk area - two monitors, PC, consoles, and a 43' 4k TV. I bought a 65' OLED - glorious - sits on the other side of the room - but I don't find my couch particularly comfortable and I don't really care for sitting 8 or so feet away from the TV - if I ever decided to just do most of my gaming from the couch it would totally change my plans, but I am also just as likely to buy a small OLED for my desk area and make it my primary monitor.