Hope you followed below instructions to setup Teams in horizon view non-persistent environment:
Refer to recommended minimum VM configuration to run MS teams on VDI:
We have followed all of these steps. I was hopeful for GPU acceleration helping but it appears to not.
kind of expected i guess. Microsoft Teams with Real-Time Audio-Video requires a minimum 4 vCPU, 4 GB RAM configuration, with a maximum video resolution of 640 x 480 pixels. Additional vCPUs and memory configurations deliver a superior experience. https://docs.vmware.com/en/VMware-Horizon-7/7.12/horizon-remote-desktop-features/GUID-E64B3E85-BA1E-4FB7-9DB4-FF9B7B7A892C.html#:~:text=Microsoft%20Teams%20with%20Real%2DTime%20Audio%2DVideo%20requires%20a%20minimum,configurations%20deliver%20a%20superior%20experience.