This is what the Steamdeck is. But it took an absolutely massive amount of work over a decade from valve just to get gaming working. No laptop manufacturer could afford to do the same for fixing wine for desktop software since they aren’t getting a cut of the software sales like valve does.
How long would it take for some MBA to come there and say hey if we install this full of crap we could make multiple euros per unit... And then fill it with crap, spying and other things?
Purely hypothetical, hasn't happened yet. The reason is that Linux system vendors are lead and staffed by people who are idealistic like the average Linux system customer. They know their clientele, they know it would be bad for business.