Latest Adrenaline 25.3.1 drivers requires agreeing with AMD's AI Acceptable Use Policy
It seems that the latest AMD Adrenaline drivers for Windows require that you agree to AMD's AI Acceptable Use Policy.
This was not present on the 25.2.1 optional drivers, but is required on the 25.3.1 drivers in order to complete the installation.
Pretty good thing there. Kudos to AMD for that.