Comment by Orygin

Prusa is also pursuing patents (they say it's because of Bambu but lol), and they are not releasing their firmware sources for recent printers.

Bambu did not close the tech they used to make their printers. Others (including Prusa) are making CoreXY and they 100% also benefit from the RnD that Bambu did (either hardware, or the slicer (without which Orca would not exist in its current form)).

Bambu just made better products for cheaper and Josef got mad. But I'm certain that Prusa could compete had they focused on making price-competitive polished printers, and not focus on $5k monster printers for enterprise.