Hey there - I recently upgraded to the 6800 XT from at 2070 Super, and a 5800X from a i7-8700, and have been having issues playing some VR games like VR Chat. It happens frequently enough that it's distracting, the image will freeze and skip for a fraction of a second. I looked at the status of Steam VR and I see I'm getting display errors. Those pink lines represent Display Errors according to Steam VR, which seems to be what the problem is. These problems have been happening since I upgraded to the 6800, and it hasn't gotten better with the CPU upgrade.
I'm currently running on a 6800 XT and a 5800X. I'm on the latest firmware and drivers, I've uninstalled and reinstalled Steam VR and VR Chat. I'm not sure what else I can do to fix this issue, or if I'm the only one having this problem.
Edit : I forgot to mention that I'm using the Valve Index.