my understanding is that a number of (already deluxe expensive fancy) motherboards have add-on chips to further jack up the cost i mean add thunderbolt4 support. i haven't seen any indicators that the kick ass readily available on chip 4x 40 Gbps of connectivity that intel mobile chips offer on integrated tb4 is available on desktop.
this, to me, constrains the desktop from being a good movipe partner to the great laptops available. at least usb4 mandates host-to-host networking, but all these great laptops with desktops lagging so far behind, having such lower standards, is excessively sad, to me.
atm phones are way far behind. no usb4 (with host-to-host networkingl nor tb4 are avialbable. i have a hard time imagining phones remaining market segmented out, not participating, in the good, not meeting the new bar.
The UHD 770 is in fact current-gen integrated graphics. It has the same modern features like DP 1.4a, HDMI 2.1, etc., which allow higher resolutions/refresh rates compared to older products like UHD 630. The main difference is fewer execution units compared to the Iris Xe-branded graphics.
Also, so far they've only put Iris Xe on 4-core/8-thread laptop CPUs; all their high-core-count laptop CPUs have the same reduced-execution-unit pattern as the desktop ones. To me, there seems to be some tradeoff between integrated graphics and CPU performance.
* an UHD 770 gpu rather than a Xe (understandable-ish as many want dedicated GPUs anyhow)
* no Thunderbolt 4, only USB4. way way less connected & capable.