Don't know about you, but i was playing my game on WebGPU, zoomed out, and noticed it was lagging a lot. Switched back to WebGL, same save, same exact conditions. nearly no lag. Repeated the test 10x times, same result.
I figured out it was a Replace Color effect i applied to thousand instances, and being all visible at low zoom, caused the lag, but only on WebGPU.
Can someone confirm this? Can someone come up with a reliable repro to allow 
Ashley to investigate? I'll try the same on my end.