WiFi roaming between APs causes 1-5 second drops during video calls

In homes or offices with multiple access points (mesh nodes, enterprise APs), devices must 'roam' from one AP to another as the user moves. Most consumer devices and APs do not support fast roaming (802.11r/k/v), so roaming involves a full deauthentication, scan, authentication, and DHCP renewal — taking 1-5 seconds. So what? During a Zoom or Teams call, walking from the living room to the kitchen causes the video to freeze and audio to drop for several seconds. So what? The person misses what was said, has to ask 'can you repeat that?', and appears unprofessional. So what? Remote workers learn to stay planted at one desk during calls, negating the freedom that 'whole-home WiFi' was supposed to provide. So what? The value proposition of mesh WiFi — seamless connectivity everywhere — is undermined for the use case where it matters most: real-time communication while mobile. This persists because 802.11r fast transition is optional in the WiFi spec, most consumer routers don't implement it or implement it incorrectly, and the client device (phone/laptop) ultimately decides when to roam — there's no server-side control in consumer gear.