Hi there VividLasting,
We understand you're not seeing any location data for Significant Locations on your iPhone, and you're asking if you should use Apple Maps. We're glad you've taken the time to reach out to us here in Apple Support Communities, and we can provide some guidance.
"The Maps app keeps track of the places you recently visited, as well as when and how often you visited them. Maps uses this information to provide you with personalized services like predictive traffic routing."
With that said, Maps is required in order to see location details for Significant Locations. Have a look at the link below to learn more:
Delete significant locations on iPhone
"If you choose to enable Improve Maps, Apple will collect the GPS coordinates obtained through the Significant Locations feature on your device and correlate them with the street address associated with your Apple ID. This will enable Apple to better approximate the geographic location of that and other addresses." This link provides more information:
Improve Maps & Privacy
Also, you may find the details here helpful:
Control the location information you share on iPhone
We hope this provides some clarity about why you aren't seeing any location information for Significant Locations. Don’t hesitate to let us know if you have any more questions.
Take care!