The rest of that blog post summaries with a lot more technical knowledge than I will probably ever have the reason why I chose not to go with Tuxedo when I switched to a Linux laptop, after 35 years being an Apple user.
Back then, I had no idea about upstream, sharing of source code or those tech stuff mentioned in the blog post. I'm no dev, I am barely interested in my computer as a 50+ user that was looking for a laptop I could fix/upgrade (I decided I was done with Apple the day I realized all their machines were no more fixable/upgrdable), a machine I would truly and fully own.
Since I was interested in two of Tuxedo's machines but not at all in their own version of Linux, I started digging around their website to find more info about using their laptops and drivers/apps with any other distro and I ended up with more confusion and questions than I had to begin with. Once again, that's coming from a non-expert user, no doubt someone else would have had better results, but still not the best experience.
Don't get me wrong, I'm pretty sure Tuxedo makes a nice OS that does its job well, it's just that I did not care about it. I already knew which distro I wanted to use and it was not theirs.
So, since I could not understand enough I gave up on their laptop altogether and simply purchased a used PC laptop I knew would be working fine with Linux and installed my distro of choice on it. So far, I have zero regrets even though I would have liked to buy one of those Tuxedo machines with their great/bright screen ;)