I use Anker MagSafe wireless chargers, work pretty well. Agree with @stephane that they do generate heat and aren’t as efficient as a corded solution. If you put them in an enclosed area while charging for instance, your phone will shut off the charger and/or lock for temperature being too high...
Pretty sure they did since they were in the outlet prior to the new year. I don’t see any replacement on their site but maybe they are working on an improved version.
Yes you can activate the tracker and get a breadcrumb trail between two points or multiple points and it updates in real time. I use it to see my overall route and distance when I head into the woods. There seems to be some drift in onx if you are using offline maps.