As revealed by iFixit, Samsung collaboration never worked well, with parts that were too expensive, and/or glued together (like a battery+screen replacement!)
Moreover Samsung never really tried to make their designs more repairable.
ifixit blog post is full of episodes, like when Samsung and iFixit announced an upcycle program, and then Samsung disappeared.
Ok, Samsung is cleared not interested in making their product repairable.
If a phone vendor cares about repair and reuse, they will unlock their bootloader. If they don’t unlock the bootloader, then they are in the business of generating e-waste