For outbound rules, once application rule traffic is allowed does the Global rules also filter the connection?
That is will a Global outbound block override an application allow rule? Or is the IP traffic initiated by the first rule to allow it?
Global rules either allow or restrict access to specific protocols, ip addresses and ports, not processes. If an application, such a as browser, has an Application rule that allows that process to connect outbound on TCP port 80 but there is a Global rule that blocks TCP out on port 80, the connection will be blocked. Likewise for any application that tries to make a connection over TCP to port 80.