Remarkable 1 & 2 come with ssh and root access. Whilst they're more eReader than tablet, they are decently powerful, with an active community around them.

Microsoft Surface Go is almost flawless in terms of Linux support, only the webcamera doesn't work. The rest is fine out of the box, with a stock kernel.

It's more of a PC, but that's an advantage I think.

Is there an up-to-date resource like r/SurfaceLinux? The compatibility guide in the side bar doesn't even list to Go devices.

Their wiki is excellent: https://github.com/linux-surface/linux-surface/wiki/Supporte...

It's linked on Reddit, but the new UI makes it hard to find.

Google Pixel C: https://github.com/pixelc-linux/documentation

Disclaimer: I'm one of the authors

Is there an available form-fitting folio keyboard with at least a six-row PC-104/105 equivalent keyboard?

https://ello.co/dredmorbius/post/lqgtwy_rhsfbdh5cdxb1rq

I'm sorry but I'm not aware of any keyboard like that, bit that's just because I've never been interested in it.

What I can say for sure is that any Bluetooth keyboard works, so, as long as you find a folio-fitting one you should be fine.

This is what I’d buy:

https://www.pine64.org/pinetab/

Haven’t used one. I like the pinebook pro.

It's out of stock though. :(

Google seems to be pushing for Linux on Chromebooks with Crostini and I was excited with the idea of having a tablet that can spin up Linux on the go when Lenovo launched the Ideapad Duet earlier this year. Unfortunately couldn't get one as it's not released in my region and it's running on a mid range Mediatek so it's nowhere close to iPad level performance.

Not a tablet exactly, but some Chromebooks can run a Linux VM.

a container, with all the things that this implies - no direct network hardware access, for example

Checkout the hardware comparability on PostmarketOS's wiki

It's a bit overwhelming. There is a giant list of phones/tablets here[1] but there is no way to quickly assess their compatibility and compare their capabilities.

1 - https://wiki.postmarketos.org/wiki/Devices

They re-organised that page into tiers of device support, it is much more useful now.

Anything in the testing category is mostly "barely works"