There are plenty of tablets that can run Linux. I think you're confusing Linux with the concept of FOSS.Yes, that is correct. Like I said, there are literally no tablets that run GNU/Linux. It's a huge issue! And it's a driver issue, not a "distro" issue, device manufacturers (i.e. basically just Qualcomm, since they essentially have a monopoly) want to keep their platforms closed for as long as they possibly can. They only provide closed-source Android drivers, no Linux ones.
The only thing that comes close to something that runs GNU/Linux is the Nokia N900. Current efforts are the Neo900 and the Librem 5, but who knows if they will ever see the light of day.
Like, if someone manages to successfully port GNU/Linux to the Nintendo Switch it could change everything. It would send ripples through the entire software and hardware industry. Since in this theoretical scenario we've already done the Herculean task of reverse engineering drivers and bootloaders and whatnot, GNU/Linux is just so, so, so much better of a target.
Like, the difference is "dual boot the switch OS with Android" vs "dual boot the switch OS with another OS that has never been on a tablet before". GNU/Linux is really an entirely different beast from Android; if we could get it on the Switch in a significant way, there's no telling what would happen. The homeberw scene would likely go supernova.
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Correction: nobody owns a Linux tablet, because none exist.
You might have to use binary blobs for the drivers but it's still Linux even if it's not fully FOSS.
I see your point though. Binary blobs are evil and they shouldn't exist. No argument from me there.
x86/x64 tablets also exist that can run Linux. Guess that's the best you're gonna get.