Some 3D printer companies tried enshittifying, like DaVinci. Fortunately, they got out maneuvered by companies making printers that were almost cheap garbage, but just good enough, like Creality.
A lot of that has to do with open sourcing the designs, and that it doesn’t take a major research arm to design a 3d printer. Getting a 2d printer to align ink to 300dpi is pretty difficult, and even more so with color. 300dpi isn’t even that impressive. That industry is tied up in patents and trade secrets, and it’s difficult for a new competitor to emerge. Conversely, I know people who designed top notch 3d printers out of their personal workshop.