My problem with cameras is finding one that is not too expensive and doesn;t mount on the helme
hence my aversion to something sticking up a few inches () further
But I presume one on the handlebars for suffer from vibration?
Have a cheap Lidl one on my handlebars, has a various settings for different types of sports and any vibration issues have been due to a faulty mount; currently use a KlickFix mount which seems fine https://www.merlincycles.com/klickfix-cam-on-gopro-camera-mount-144963.html (other suppliers exist)