I remember the backstory for this one!
So, I wear glasses, and due to the way glasses work near the edges some colors will be refracted at a different angle than others, causing them to "move". This image shows the Hetzner logo and what it always looks like from the corner of my eye all.
https://is-a.wyvern.rip/files/6b682327-ec56-46f9-b0a6-210541cf6ca1