Explanation
Applying VMware Blast Policy Settings
If the following VMware Blast policies change during a client session, Horizon Client detects the change and immediately applies the new setting.
H264
Audio Playback
Max Session Bandwidth
Min Session Bandwidth
Max Frame Rate
Image Quality
For all other VMware Blast policies, Microsoft GPO update rules apply. GPOs can be updated manually or by restarting the Horizon Agent machine. For more information, see the Microsoft documentation.
https://docs.vmware.com/en/VMware-Horizon/2206/horizon-remote-desktop-features/GUID-220442CF-EA01-4