Simple command-line tools (often using the Scapy library) that execute ARP spoofing.
For critical devices, configure static ARP tables so devices cannot be tricked by ARP spoofing. wifi kill github 2021
Though created earlier, was the tool of choice in 2021 for serious deauth attacks. It is a powerful suite for Wi-Fi stress-testing. The "deauth" module in mdk4 can: Simple command-line tools (often using the Scapy library)
You're looking for information on WiFiKill, a tool that can disable or "kill" WiFi connections on a network. Here's what I found: wifi kill github 2021