TILE app and swarm is just one example. My problem is not with the "functionality" of the blue bar it's with how its implemented.
This is forcing users to address something that was never a problem.
Now that I think about it, the arrow which has always been there for me wasn't filled blue as often as this blue bar is appearing.
I have no experience with Tile or swarm, but reading about how they work, I suspect they are being more resource intensive with their location tracking than they have to be. I'll predict that this UI change will force them to optimize their use of location services (as intended).
I’ve noticed the “brief” blue bar appearance for:
Facebook
Google
Google Maps
The bar will appear for a second or two every 20-30 seconds typically. Setting the apps to “only while using” and force-closing them eliminates the issue.
And Waze presents another issue - if I set the location access to “only while using” and subsequently close the app, the blue bar will stay on screen until I force-close Waze. I’ve let it linger for more than 20 minutes without re-opening the app and the blue bar doesn’t go away. This is on latest public beta.
That makes sense for Waze. "Only while using" doesn't necessarily mean "only while foregrounded." In the case of Waze, it is designed to track real-time position while in the background. The app aggressively keeps itself active in the background unless you use the sleep mode in the app that turns off location tracking.
It's a prime example of why the blue bar is needed. On more than one occasion in the past, I got to work and realized after a couple of hours that my battery was seriously drained because I had left Waze running. The fact that the tiny arrow is solid rather than hollow is not easily noticeable.
Facebook is a notoriously egregious resource hog. I deleted it a few years ago when I saw the resources it demanded. I use a bookmarked Safari applet to access Facebook, so I can't test it. (Facebook later got caught cheating on backgrounding, so it might be a bit better now, but I still don't trust them enough to try.)
Google Maps makes sense, but for me it seems to respect the "only while using" setting. It does not trigger a blue bar in the background. I don't use it for directions while driving.
The Google app probably shouldn't trigger a blue bar in any case, but I don't see it with "only while using" set.