Screen flickering in certain spots on Wayland with Nvidia card

Chrome based browsers need to be told to use wayland, either set in flags or edit the desktop file exec line, e.g.

Exec=opera-beta --enable-features=UseOzonePlatform --ozone-platform=wayland %U

Flags are accessed via:

<browser>://flags

vivaldi as an example:

Do you use grub or systemd-boot?, is nvidia_drm.modeset=1 set?