No, AirPods do not support Apple Music lossless playback.
Rumors point to a firmware update in the works. This update would add high-fidelity audio playback to all AirPods models when released.
Existing AirPods hardware (W1 / H1) is capable of wirelessly streaming lossless audio encoded as ALAC or FLAC with a future update installed.
No, Voice Memos recordings made with the built-in microphone are not stereo.
To create a stereo recording an external stereo microphone must be used. With a compatible stereo microphone connected to the iPhone, the Voice Memos app can capture higher-quality stereo audio.
Fans of Google services are not locked into using iCloud Photos to backup their images. Google Photos offers 15 GB of free storage and many features such as Google Lens, facial recognition, and image compression options. The iPhone can be configured to automatically upload pictures to Google Photos instead of the iCloud Photo Library.