allow control of GPU acceleration by GPO or registry
Many VDI environments do not have dedicated GPU resources. Disabling GPU acceleration reduces host CPU resource consumption. Presently a .ps1 needs to be executed to control this behavior as seen here: https://discussions.citrix.com/topic/410823-powershell-command-that-can-be-used-to-disable-gpu-in-teams-settings/
The various non Microsoft workarounds while workable are not what corporate clients expect for an Enterprise solution. You need to step up the management game for Teams!