Third party games that are 4K 60 will also be 4K 60 on PS5, so it's nothing specially exclusive to the XSX.
The thing to remember is MS need either of the following to avoid another catastrophic failure in console sales
A - New gamers that don't own a console to buy their system.
B - PlayStation gamers to switch to their system.
The only way I can see MS picking up any kind of significant market share is if the Lockheart console is dirt cheap, as I expect a lot of parents will buy their kids that so they have a cheaper entry into new gen.
For XSX, there is absolutely no reason for anyone other than hardcore Xbox fans to even give one a second glance at the moment, or even the next couple of years looking at the showcase, and that's a shame after MS put in the effort to make it a hardware beast, I want to see MS back to their best from the x360 days but they're still going backwards, and this gen looks to be another repeat of trying to be carried by Halo, Forza and Gears, and backwards compatibility because they have nothing new for a while.