Yes, I’ve run Trisquel on all house devices for 10-12 years, plus libreboot.

Other commenters are correct, plenty of hardware will not function at all without its proprietary blobs. Frustrating at first, but then good riddance once you find libre alternatives.

For new hardware purchases you can follow what hardware various online hardware retailers are using, such as:

minifree.org

vikings.net

thinkpenguin.com

Or trawl through h-node.org to decipher what may work.

This trims out all the proprietary fluff real quick, both software and hardware. Backdoor vectors from obfuscated-blobs are removed.

Trimmed out a ton of games too. No big loss. Initially thinking there was no way to live without X-proprietary game, but there is.

Many people have jobs that are tied to particular proprietary packages. Can run those contained in a virtual-machine or on a box other than your daily.

Proprietary software may or may not be brainrot, make your own conclusions, but I am calmer and sleep better these days.

I’ve met Stallman, Linus, and Wales, and they are shining a light to show a realistic path to a more open future. I support and use that each day.

Skip the FUD and all the best.