Forget Linux for a second. What you need to be aware is that both the variants come with only 4GB soldered-on RAM and eMMC storage. That means, even if you do manage to get Linux going on them, it’s going to be super slow for any sort of practical Web/GUI needs. 4GB RAM is barely enough to run a browser these days, and if you tack on a full-fledged DE and multitasking with other apps, you’ll be pushing memory pages to the disk (ie, swapping). And when that happens, you’ll really feel the slowness. Trust me, you don’t want to be swapping to eMMC - that’s super old tech, something like 3x slower than UFS, which in turn a LOT slower than m.2 NVMe (the current standard used in “proper” laptops/convertibles).
Also, consider this for perspective - even budget smartphones these days come with at least 6GB RAM and UFS storage. So this laptop/convertible - a device meant for productivity - is a complete ripoff.
If money is an issue, then just buy a used laptop (from eBay, or whatever you guys use there). If you’re aiming for good Linux compatibility then ThinkPads are a safe bet. But since you’re after a Surface-like device, then you could just get any older Surface device. Why settle for an imitation when you can get the real thing? In any case, most older x86 laptops from mainstream brands should work fine in Linux in general, just do a google for it to see if there are any quirks or issues.
Regardless of your choice, avoid the Duet 3. 4GB RAM is completely unacceptable for a laptop in 2024.