iOS 15.1: How to Enable Dolby Atmos Spatial Audio and Apple Lossless on HomePod

Alongside the iOS 15.1 and iPadOS 15.1 updates for iPhone and iPad, Apple has introduced a new 15.1 software update that's designed for the HomePod and the HomePod mini. The ‌‌HomePod‌‌ update introduces Lossless Audio and Dolby Atmos Spatial Audio to Apple's smart speakers, bringing them in line with other devices that have supported the features since early 2021.
The spatial audio feature, officially available only with the full-size ‌HomePod‌, uses Dolby Atmos to