I think PLA is a lot stronger than people give it credit for, especially if printed at 100% infill. I finally had a chance to use the PLA-CF that came with my Bambu X1C for a replacement part on my tripod, and it's great.
PLA-CF is not particularly stronger than PLA. Some properties are improved, mostly geometric stability and appearance, but the carbon fiber acts more like defects in the plastic than strengthening. It’s got very little of the benefits that you’d imagine based upon n experience with regular carbon fiber.
