60+ tick multiplayer servers are a thing.

Besides - low input latency means you get response that is not exactly what you are doing in the moment.

If that's round trip latency. Then input latency will be 8ms right? Input action to Frame update latencies are reliably 12-13ms+ with a local console routing through a TV.

So if they can do something fancy with rendering frames to the network to sync with your monitor. We might see a minimal increase in actual overall latency.