Personally, I use GPSLogger from FDroid on a 15 minute ping interval and then load the files into Location Map Viewer (also FDroid) for my own location tracking. Disabled Google awhile ago.
Looks like most of the existing replies captured my same use cases!
There have also been a couple of times where my wife and I disagreed about what we did on X day and it’s kind of nice to see who is right 😂
I think I also just like the raw data. I also keep spreadsheets of my utility bills over time, for example, because it’s weirdly fun to look back and see or compare.
One thing I’d really love is a self-hosted all-day heart rate tracker, but have yet to stumble on such a thing.
*Cries in Debt* (lemmy.zip)
Google will no longer hold onto people's location data in Google Maps — meaning it can't turn that info over to the police (www.businessinsider.com)