Here is a Canon EOS R6 Mark II review by a professional and reliable reviewer.…
Canon EF 50mm f/1.8 STM vs. Canon EF 50mm f/1.8 II focus and sound differences in Video Servo mode
Dustin Abbott posted a short video on YouTube that shows the differences in focus quality and sound between the new Canon EF 50mm f/1.8 STM and the EF 50mm f/1.8 II, both lenses used on a camera in video servo mode. Well, big differences. Congrats Canon for having made another excellent and inexpensive lens.
Canon EF 50mm f/1.8 STM availability check for your country: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA.