ExoticCurse
ExoticCurse if I were to enable location access and provide a single app the ability to track my position, would I be inviting additional tracking
In short, not beyond the tracking that one specific app would be doing.
The global Location toggle is just what it sounds like; it decides whether any permitted app can find your location or not. Access to the actual location information is governed by the Location app permission found under Settings > Location > App location permissions. If you don't grant an app location access in that menu, it won't have access to your location even when the global Location toggle is on.
So, as long as you make sure that only the app with location access permission is the one you want to use for location sharing, other apps won't have access to your physical location.