The linked video has a very good explanation of what vaccine efficacy rate actually means, how it's sometimes difficult to compare the values for different vaccines, and how the actual important metric is what percentage of vaccinated people actually get COVID bad enough to require hospitalization. If you are vaccinated, with any of these vaccines, you could still get COVID, but it would be more like a cold and not at all life threatening.
Generally I am not a fan of Vox, but this is an excellent video.
https://youtu.be/K3odScka55A