Companion app privacy settings

If i make my profile private i understand only I can see it. If its later made public can folk see activities done whilst it was private?

You mean in the companion app, right?
Just checked - they are not visible.

Yes. Thanks

Only if you edit the privacy settings for past activities. When your profile is public you can also still save specific activities as private at the time you save your rides, or make them private by editing an activity after it’s saved.