WiFi 6 is the newest standard for communication. This blog compares WiFi 4 vs WiFi 5 vs WiFi 6 in speed, range and more.
IEEE 802.11be - Wikipedia
What does WiFi 5 and WiFi 6 mean, and what are the basic differences between them? How do they work? - Quora
Analyze the differences between Wi-Fi 6 vs. Wi-Fi 5
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WiFi standards explained: WiFi 4 vs WiFi 5 vs WiFi 6
Nest Wifi vs. Nest Wifi Pro: Google's Newest Mesh Routers Compared - CNET
Wi-Fi 5 vs. Wi-Fi 6: What's the Difference?
Wi-Fi generation comparison Wifi6 vs Wifi5 vs Wifi4 » Network Interview
WiFi 6 vs WiFi 5 speed: Which is better?