There Are More Changes to Voice Control
Overall, Voice Control was one of the features with the most changes in iOS 17.
For instance, Apple rearranged Voice Control, so the options for Vocabulary are now part of the Vocabulary menu. Voice Control also has a new icon, and it now has the Sound Curtain feature inside the Quick Settings menu.
If you’re someone who uses Voice Control a lot, going to Settings > Accessibility > Voice Control to find everything new should be a top priority for you.