How can I adjust music playback speed on HomePod and Mac?

Perhaps to try 'Safe mode on startup' for Apple Silicon,

using the modified instructions specific to that version:

How to Boot Your Mac in Safe Mode: A Step-by-Step Guide

Dec 8, 2023TL;DR. To boot your Mac in Safe Mode, follow these steps for your respective model: For Apple Silicon Macs: Shut down your Mac, hold the Power button until the startup options appear, select a volume, and hold the Shift ⇧ key while choosing to continue in Safe Mode. (other instructs, for Intel-based Macs)

https://macbookjournal.com/how-to-boot-your-mac-in-safe-mode/

Apple offers different instructions, some for older 'Intel-based' Mac and 'newer Silicon' Macs:

If you're using a Mac with Apple silicon

1. Shut down your Mac.
2. Press and hold the power button on your Mac. As you continue to hold the power button, your Mac turns on and loads startup options. When you see Options, release the power button.
3. Select your startup disk. It's named Macintosh HD, unless you changed its name.
4. Press and hold the Shift key, then click the “Continue in Safe Mode” button below your startup disk.
5. Log in to your Mac. You might be asked to log in again. (quit and restart normal to test)

.+.+.+.

•Start up your Mac in safe mode - Apple Support (read "Before you Begin" detail first)

//support.apple.com/guide/mac-help/start-up-your-mac-in-safe-mode-mh21245/mac

Use safe mode on your Mac - Apple Support

//support.apple.com/en-us/116946

.These include version specific steps & options; that should function correct, if performed.

[There may be other restart system sequences from Apple, that do not include Safe mode.]