I'm hoping the legislation doesn't forbid dual charging ports, where the device has usb charging which works as well as it can, and then a proper charging port. My current laptop has that configuration.
Because there's also the issue of durability. A barrel power connector can freely rotate which can absorb a lot of stress when the laptop is moved around. I think a usb-c cable that's used the same way would fail a lot sooner, especially with all the delicate wiring it has in comparison.
I remember some 10-15 years ago when I'd look at the y windows website every couple of months hoping for some news of progress, simply because I was sick of x11 being so crappy. I hated it, it was so fiddly, it didn't work right, I just wanted something that worked.
So you can imagine how happy I was when Wayland started taking off. Here was the promise of something better, something that just worked, it sounded amazing. And yet, today I'm still running xorg and I will be for the foreseeable future.
The reason is simply that in the time passed xorg just became usable, I don't have to think about it, it works reliability, it has all the features I need and I hardly ever have to touch it. Meanwhile, I log into my Wayland session and instantly 3 or 4 of the applications I use daily either don't work or act weird. I go and try and fix the issues and I'm told to just accept it, or that I actually don't exist because Wayland works perfectly for everyone. And I'm not even using an Nvidia card, just plain Radeon.
So I quit and go back to what works. Maybe in a couple of years, until then: no thanks.
If you need this frequently, I really suggest you look into GPU forwarding. I have a Windows VM setup with a second card and it works perfectly, I use it for games and CAD all the time. Figure out your iommu groups, pop a second card in your computer (and optionally a second nvme drive if you want max performance), and use virt-manager and the arch wiki to set it up.
For accessing the machine you can use a second monitor input, or you can get a window to the machine with looking glass or moonlight. I use moonlight as it lets me play games from my laptop on the couch, and looking glass was causing windows to crash sometimes.
It's a bit of work to set it all up but when you're done it should just be one XML file and maybe one modprobe.d config file.
I think I've been using this for over a year now and the single pain point I encountered in all that time was maybe that usb input hotplug isn't supported, though there's ways to fix that, but I haven't bothered.
Come on now, give him some credit. He waited a whole few days before completely going back on his words.