Hi @_Henrik_Amundsen_C1, welcome to the Forums! I’m Francisco from Zwift Support.
Thank you for sharing those detailed pictures—they’re super helpful.
Could you also try testing the game on version 1.88.0, which was released today? I noticed that you’re currently running version 1.87.2 on both your PC (AMD Ryzen 7 5800X 8) and Samsung SM-S911B (S23). Updating to the latest version might help to isolate this.
Here’s an article to guide you through the update process: Updating Zwift.
We’ve already received reports from users where rocks or grass clip through the road on the Hell of the North route. This might explain what you’re seeing during your rides there. Keep us posted on how it looks with 1.88.0, if the issue is still reproducible.