hi Joseph,
• Just to verify, can everyone confirm if all have installed the Creators Update?
CU updated and every other updates is up-to-date.
• When you turn on the Surface, did you notice if the Surface logo flickers/shakes as well?
no flickers/shakes for cold boot. flicker/shakes do happens if the machine is warm/heated up.
• Does it occurs immediately after you logged in to Windows, or when working on a certain task? If so, how long does flickering/shaking last?
cold boot is totally fine with no flickers/shakes. it started to get flickers/shakes after warm/heated up, in my case, watching YouTube in both EDGE and CHROME for maybe over 20 minutes, it starts to happen when the video quality is 1080P, however
it won't have flickers/shakes when the video quality is 720P. when it is happening, i close the browser, the flickers/shakes do still happen on the desktop screen but, will become less and lesser after waiting, and passing by at least 20 minutes or so later,
the screen was back to normal without flickers/shakes, for over at least 3 times of testing.
• Does your device connect to your external monitor/s via Surface docking station when this occurs?
not sure as do not have the docking station.
• Are you using a splitter/adapter to connect directly to an external monitor without the docking station?
not sure as not necessary to me.