https://hackaday.com/2024/11/20/with-core-one-prusas-open-source-hardware-dream-quietly-dies/#more-734822

(I’m not English native)

One of the latest Prusa printer is closed source If I remember correctly Core xy

You are not completely wrong, they have one printer with closed sources.

This is mainly because consumer 3d printer have been developped by 3d printing enthusiast first and not a company, Prusa which was leader for some time used a lot of open sources project to build their printers. As it’s getting mainstream as time goes by more and more companies shows up with closed sources project sadly.

It is mostly targeting french content (RD is a french company), so most user may have not see a big change. For french, RD has become muche less attractive because RD has banned biggest french torrent site and 1fichier files are scanned, if file matches hash content from movies/series it will blocked download.