Yes, moving from voice-centric to IP-centric network technology has helped, and 5G paid laudable attention to latency. Their target for 5G is actually 1ms, but of course backhaul will dominate that.
Here are two sources which I found useful at that time https://broadbandlibrary.com/5g-low-latency-requirements/ https://www.linkedin.com/pulse/we-need-talk-low-latency-dean...
Still, it's important that latency is top of mind for the designers of 5G, as it gets short shrift far too often.