It can even run Doom decently well and the highly demanding SuperTux Kart!

Hi,

1. No open source BIOS / UEFI at the moment. It is currently based on a customized AMI Aptio BIOS.
2. Yes, it should have Pluton. But just to be on the save side, please contact our support (tux@tuxedocomputers.com), 1-2 sentences are enough.
   Your question will then be forwarded to our R&D / dev team eventually to check it.

The appeal also lies in the hardware support.

Of course you can install Linux on most typical gaming laptops and it will work fine for the most part.

But it cannot be taken for granted, that everything can be controlled. Be it the fan control, FN keys, RGB stripes/keys, screen brightness et cetera.
We reverse-engineer drivers and firmware to make sure, that a laptop is ~100% Linux compatible, that is the USP.

Also, we offer Linux telephone / mail support, which is especially important for newbies and B2B customers. There are only a handful of Linux laptop vendors in the entire world that target both John Doe and B2B equally.
If something breaks, nobody needs to crawl between forums, subreddits and figure out stuff completely on their own. We take care of it, so the customer doesn’t have to as much.

Cloud Storage and customization options (engravings) are the icing on the top.

We will probably never be able to compete with other brands in terms of the raw price+performance ratio - Black Friday doesn’t exist for us.
You may find it cheaper initially, but if something breaks, costs for RMA or service in general can be higher. And in these cases, you might reach a break-even point.
And having that security net is often worth the surcharge for many customers.

Yeah, one of my penguin colleagues was brave enough to put the claim into the press release. :D
Considering the Linux laptop market, this statement does hold true! Technically though, there were of course even AMD-based MXM GPUs floating around combined with AMD CPUs.