What will work if I install Trisquel on PineBook Pro?

You can register the usage of PineBook pro if you sign-up to H-node website. Evidently, with their respective test that uses only the avariable open-source drivers and/or firmware from part of the GNU/FSF-endorsed distros like Trisquel or Parabola.

Everything.

Except the WiFi, Bluetooth and DisplayPort over USB-C (so no external display).
The DisplayPort controller (DPTX) firmware is nonfree.

See the Parabola Wiki about that: https://wiki.parabola.nu/Computers/Pinebook_Pro

The speakers can be non-functional, but you can solve that with Bluetooth speakers or Bluetooth headphones:
https://pine64.org/documentation/Pinebook_Pro/_full/#ubuntu

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You can buy adapters from ThinkPenguin and solve the freedom issue:

- Penguin Wireless N USB Adapter for GNU / Linux (TPE-N150USB)
https://thinkpenguin.com/gnu-linux/penguin-wireless-n-usb-adapter-gnu-linux-tpe-n150usb

- Penguin USB Bluetooth 4.0 Micro Adapter (TPE-USBBLUV4)
https://thinkpenguin.com/gnu-linux/penguin-usb-bluetooth-40-micro-adapter-tpe-usbbluv4

If you need a USB-C adapter:

- Mini Adapter For Connecting USB Type-A Devices To Type-C USB Ports (TPE-USBATOCMINI)
https://thinkpenguin.com/gnu-linux/mini-adapter-connecting-usb-type-devices-type-c-usb-ports-tpe-usbatocmini

- Adapter For Connecting USB Type-A Devices To Type-C Ports (TPE-USBATOC)
https://thinkpenguin.com/gnu-linux/adapter-connecting-usb-type-devices-type-c-ports-tpe-usbatoc

Did anyone report successfully installing Trisquel 11 or Trisquel 12 on a pinebook pro?

I tried installing Trisquel 12 on a rockpro64 that has u-boot on the SPI flash, the installation starts (HDMI display was not functional at this stage, I used a serial connection) but it says that no network is detected, although ethernet is functional with Debian without any non-free firmware. Besides, when briefly using MATE on Debian, with the file systems on an SSD connected via USB3, it felt less reactive than my X200 with MATE on parabola.

Hello icarolongo.

Thank you very much for your detailed and helpful answer.

You answered all my future questions at once ))

I am sure that your answers will be useful to many users.

I forgot to write another important question.

Let's say I currently have a T400 + GnuBoot or a compromise laptop T440p + Libreboot or T480 + Libreboot.

Will the Pinebook Pro be better than the models I mentioned above? In terms of processor power, screen, memory, etc.

T480 is the best for battery life and processor power hands down. Memory too.

I don't have pinebook pro, but I have heard people compare rk3399 to a laptop grade processor. However, it is ARM we are talking about 64 bit, but still ARM.

Ivy bridge probably outspeeds ARM if its like X230 thinkpad with i7, dual core or otherwise.

I have a t480 with libreboot though it definitely works very fast and it has more capacity to handle heat. Whereas wine appimage + certain software would cause my x230 to log out or poweroff. That same mix of wine appimage and that certain software didn't effect me the same way on my T480.

X230 = i7-3520M 8GB ram

T480 = I5-8250U.32GB ram

Although the 2nd has 4x the ram.

Anyways, the heat usage is like 1/8 of X230's.

I am pretty amazed to be honest at what actually heats this up.

I bet I would have to play some proprietary game from 2010 via wine to make it overheat at all. Or get hot for that matter as well.

The only downside, is that I don't know if you'd prefer the screen or not.

Btw, it has one slot minimum for NVME SSD built in... so the memory non ram, can be quite fast.

Oh btw, my libreboot t480 with intel me disabled has a ath9k wifi card, so it can be used without non-free stuff. Using Hyperbola on it currently as we speak.