I think I read somewhere a while ago that kubernetes cluster will start experiencing big slowdown at around 500 pods due to overhead of its internal networking

I think I read somewhere a while ago that kubernetes cluster will start experiencing big slowdown at around 500 pods due to overhead of its internal networking components. Not sure if it's still true now. I'm going to deploy a cluster that might contains more than 500 pods soon so I'm not really eager to find out the hard way.