The Vesper Cortex is one of my problems and quite irritating. In addition, I’ve seen other devices such as Sonos, Blusound, various IoT devices and the like have issues with 2.4Ghz.
I have also seen significant performance issues that require constant reboots, and in “noisy” WiFi environments, get positively unusable no matter how many reboots you perform.
Testing side-by-side, with differing and similar channels, using UniFi and several other APs, I see none of those issues.
Nevertheless, I still use the AP One AX a lot because of its simple management platform and low power use…