I start Chrome/Vivaldi with these switches. No anti-aliasing, but the browser runs really well.
--enable-features=UseOzonePlatform --ozone-platform=x11 --use-gl=egl
If I want to get anti-aliasing working properly, this compromise works with a slight performance hit.
--enable-features=UseOzonePlatform --ozone-platform=x11 --use-gl=egl --disable-gpu-compositing