Greetings!

I'm a former Debian user that switched to Trisquel a couple of months ago, just out of curiosity.
Actually I could have used Trisquel (8.0) already in 2019 when I got to know about the Free Software movement (It was not the first time for me to use GNU/Linux)- unfortunately the installation didn't work out and I still have no clue. My computer is an official "Ubuntu Certified" model that its manufacturer tested with Ubuntu 16.04. I don't think the proprietary Intel Wi-Fi card was the reason :/
Anyway, I settled on Debian and used it for about 3 years, and at some point I even changed my Wi-Fi to a free model, in order not to use the nonfree repository. I found Debian very satisfactory in general and it still is one of my favorite distros.
One subtle problem I had with Debian was the official GNU manuals. For certain reasons the GNU Free Documentation License does not meet Debian's own Free Software guidelines and they are in the nonfree repository (it was pretty surprising at first). Enabling the nonfree repo means that I could accidentally install nonfree softwares by mistake. Of course I could keep the nonfree repo disabled and download the GNU manuals from gnu.org though...
This was one of the few reasons that made me give Trisquel another try - and Trisquel 10 now runs nicely on the same computer! Just as stable as Debian :)
(Well, one problem I found is that BlastEm - the Sega Genesis emulator - crashes. But I don't use this app for now...)

Many thanks to the Trisquel maintainers for their hard work - I can't wait to see Trisquel 11 rolling out :)