Perhaps proprietary is not the correct word then, but it is exclusively in-house developed by themselves AFAIK. My point is, they insist on reinventing the wheel every time they want to catch up to their competitors because of this, instead of just working together with the open source community.
Prusa is what i would call partly open source these days, the article you link is up to date. But they're behind the curve at the moment playing catchup with much cheaper printers. This is in part because they insist on their own proprietary firmware instead of working with the massive klipper community which IMO is driving bleeding edge of consumer 3D printing right now, and what almost all their competitors are also using (in some variation).
what are the chances I need to stop at the paid restaurant when I am trying to get to another restaurant in 20 minutes?
That's not the purpose though. This puts this other restaurant in your head for some other time. You may think you're not actually affected by this tactic, but decades of research shows that, even when aware of this, it still fucking works.
Their guaranties and payouts in their inaurance-branch are also horrendous and laughable, plagued by nonsensical coverage rules and ridiculous low rates.
Edit: and no, it's not an insurance company masquerading as a pension fund, the areas are two entirely independent branches they have slowly been merged over time in the name of government efficiency (a.k.a. budget cuts). They also handle student financial support and basically all government financial aid programmes. But again, the cost of these things are entirely separate from the pension fund and how that is managed, it's not the same pool of money.
This is unfortunately way too real. How a supposedly professionally managed fund can loose money when prretty much the entire market is trending upwards is almost impressive.
This bill is not about stopping distribution of the files, but preventing the printers from printing them even when you have the files.