Hi ayudameporfamac
welcome tro the Apple (user-to-user) Community!
Re: Voiceover off but mac narrates
Wondering if you have also set Mac up to speak the screen, and accidentally pressed the shortcut for that:
Eg: you can have your Mac speak text whenever you press a keyboard shortcut. (Also: you can choose to show an on-screen controller that lets you easily change the speaking rate, stop speaking and more)
Have your Mac speak text that’s on the screen - Apple Support
If so: To stop the speaking, press the keyboard shortcut again: (the default key combination is Option-Esc).
or if Mac is making announcements: You can turn that off: Apple menu > System Settings > Accessibility > Spoken Content (on the right) Turn off “Speak announcements”.
More info: Have your Mac speak announcements - Apple Support
All the best :-)