Wasn’t exactly this talked about a few years ago?

While I can’t find any source to back up my claim that it certainly drains some amount of battery, can you provide any evidence that it doesn’t impact battery life? Given that GPS uses significant processing power

This says otherwise https://geofinder.mobi/blog/does-location-sharing-drain-battery/

Some friends of mine have literally hundreds of friends with their Snapchat location sharing on