LOW
Source
CloudSploit
ID
application-gateway-http2-enabled

Application Gateway HTTP2 Enabled

Ensures that HTTP2 is enabled for Application Gateways.

HTTP2 support is available to clients that connect to application gateway listeners and provides improved performance and efficiency over HTTP1.1. Clients and backend services that do not support HTTP2 fall back to HTTP1.1.

Enable HTTP2 from the configuration settings of the application gateway.