The reason 6Ghz was introduced with WiFi 6E and 7 was because 2.4Ghz and 5Ghz was very busy.
My question is why isn’t there anything in between? Why isn’t there a 3Ghz, 3.5Ghz, 4Ghz, etc?
Also, what if things that require very little data transmission used something lower than 2.4Ghz for longer range? (1Ghz or something?)
The difference there though is that those devices are point to point, not broadcast/receive. Iirc there are different rules in place for direct line of sight devices, and misuse will land you a meeting with the FCC, hence why the more powerful variants require a license.