Has anyone made a comparison of Minecraft server performance on ZGC vs Shenandoah vs G1GC on a recent JDK version? I'm curious whether the amazing GC pause numb

Has anyone made a comparison of Minecraft server performance on ZGC vs Shenandoah vs G1GC on a recent JDK version? I'm curious whether the amazing GC pause numbers hyped by the latest versions of ZGC hold up (max pause times of 500 microseconds and averages of 50 microseconds). Also what's going on with the generational Shenandoah GC spikes in that graph? There's some pretty crazy spikes that completely dominate the pause numbers and make it pretty hard to read the graph. It looks like GC pauses kept increasing up until the server crashed?