Should I get a nikon af-s nikkor 50mm f1.8 when I already have a canon ef 50mm f1.8 just to have functional autofocus

Background: I have the canon nifty fifty because when I had an internship that required photo work at a zoo/nature park thing using my own equipment, and I had no budget whatsoever, I found the canon 50mm f1.8 for like $50 and got a dumb adapter for $15 and it was actually very functional because it had a wide enough aperture to focus out chainlink fences and other zoo stuff while being long enough on the crop sensor to use for long range closeups

Alternatively, should I get the yongnuo knockoff nikon 50mm f1.8 instead lol