I've got Windows 7 at 125% running on a 70some inch TV off a tiny Optiplex Micro with an i3 or something, and a fork of modern Firefox for w7, hardware accel and all. I use my phone as a bluetooth touchpad/keyboard with an app that was maybe 5 bucks. Best 10-foot interface I've ever used. Everything works exactly as expected, no fuss, no gotchas, no friction, no workflow-breaking updates. And I never lose the remote!

This (plasma-bigscreen) is going to fail, as 10-foot interfaces historically do. It is a waste of good developer time and focus.

Free Desktop people keep obsessing over ill-advised moonshots as a form of escapism; no one wants to address the fundamentally broken core desktop model. Papercut bugs are boring and solving them is thankless. Working on a shiny new TV mode interface looks better on a resume. Meanwhile the rest of the world is pulling their hair out over Windows 11 and macOS Tahoe because there are still no feasible alternatives for normal human beings.

If 10foot is ill-advised then why do you use one?