I have had Samsung since the first Note arrived and have been a loyal customer ever since. This is not a Samsung bashing exercise, just some honest truths.
I use mapping software in the mountains and noticed an intermittent fault with GPS flipping and freezing. I recorded the issue and sent some samples to the mapping company. They could not replicate the issue and had not seen it before on any device. To be fair to them they offered 2 solutions, a refund of hundreds of pounds or specialised software to delve into the matter further that would involve lots of sending logs back and forth.
I contacted Samsung and was seen by an official repair partner. He saw the issue, tested the device which came back ok. On discussion with him, he admitted he had seen the issue many times and knew the fault was there. Unfortunately he said, it would be a case of arguing with Samsung for a replacement device. I am prepared to do that given I know the GPS Antenna/Magnometer/Accelerometer are all in the same unit, and there is evidence of the same issue across the Internet. Just having the engineer confirm it, is enough for me and my own user experience.
He also told me the amount of issues they are having with One UI 6 is quite large. I was part of the beta programme from day one, and although I never had major issues, obviously others are.
For a lot of users the GPS issue won't effect them, but for a person like myself who uses it a lot, I am left with a faulty device that was bought for that perpose. I tested the software on a different device and it worked fine.