iPadOS 14.5 Beta 2 Mutes Built-In Microphone on iPad When Smart Folio is Closed

According to Apple's release notes for the second betas of iOS and iPadOS 14.5 that were released this morning, the update introduces a new privacy feature that's aimed at limiting microphone access on the iPad with a Smart Folio.
On the ‌iPad‌ (8th generation), iPad Air (4th generation), iPad Pro 11-inch (2nd generation), and ‌iPad Pro‌ 12.9-inch (4th generation), when the Smart Folio is closed, the built-in microphone will mute, but developers have an option to build their