[Pollard]

GrapheneOS works on only a handful of phones, ironically, the Pixel line of phones sold by google. GrapheneOS is Linux but compatible with Android apps. Little tricky to install but there's a few people on ebay selling Pixel phones with GrapheneOS pre-installed.

There's a way to put Linux on a Chromebook but that's even trickier.

Tablets, depends on the model I suppose. I have a rugged Panasonic tablet that I run Ubuntu on. It's a touch screen but the kind where you have to use a stylus. Works fine on Ubuntu though.

Here's what my Panasonic CF-H2 rugged tablet looks like

Mine's silver but they made them in white too for the medical field. Kind of an oddball but it's an Intel machine made for Win 7 and Ubuntu works just fine. Linux/Ubuntu works fine on most anything that ran windows. I use Thinkpad laptops for daily use and have for close to two decades running various flavors of Ubuntu. They sold a lot of Thinkpads with Linux pre-installed.

[Mad Dawg]

Thanks!