Update;
I have an answer from Asus support. They manage to reproduce this behaviour on their side with a 4060, but they first seems to put this kind of artefact on the panel and the OLED technology and argued that this is happening also on other monitors brand.
I just tested the LG 34GS95QE and send them the new footage, and I couldn't reproduce those withe lines anymore. Same PC, same DisplayPort Cable, same port.
LG 34GS95QE
PG34WCDM
They now seem to acknowledge the situation after these new video capture and are now "working on it".
I am uncertain whether this issue is due to a manufacturing or if it can be resolved with a software update, but it certainly concerning.
(PG34WCDM) White horizontal lines on ultrawide OLED with VRR
Re: (PG34WCDM) White horizontal lines on ultrawide OLED with VRR
Just letting you all know that Asus release a new firmware (MCM106) for this monitor that is getting rid of those lines so far after a few minutes of test on SmoothFrog.
It seems like it was just a firmware bug on their part, a bit too long from them to realize that, but at least they finally worked on it!
Edit: Unfortunately, the new firmware did not completely resolve the issue. There is some improvement, as the problem is not as easily reproducible as before in SmoothFrog.I am still in contact with ASUS support, providing them with additional video captures and awaiting their feedback.
It seems like it was just a firmware bug on their part, a bit too long from them to realize that, but at least they finally worked on it!
Edit: Unfortunately, the new firmware did not completely resolve the issue. There is some improvement, as the problem is not as easily reproducible as before in SmoothFrog.I am still in contact with ASUS support, providing them with additional video captures and awaiting their feedback.