I had a feeling the iPhone 11 Pro GPS is inaccurate. I think my feeling was correct! : r/iphone
Turn Location Services and GPS on or off on your iPhone, iPad, or iPod touch - Apple Support
Wifi Bluetooth Antenna Nfc Flex Cable For Iphone 11/11 Pro/11pro Max Wi-fi Gps Signal Antenna Flex Ribbon Repair Parts - Mobile Phone Flex Cables - AliExpress
How Do I Turn On GPS On My Iphone? Quick Tip to Learn Now - YouTube
How to Fix GPS Problems on iPhone/iPad in iOS 12 | iPhone GPS Not Working - YouTube
Wifi Bluetooth Antenna Nfc Flex Cable For Iphone 11/11 Pro/11pro Max Wi-fi Gps Signal Antenna Flex Ribbon Repair Parts - Mobile Phone Flex Cables - AliExpress
WiFi and GPS/GSM antenna +flex suitable for iPhone 11 Pro | small parts | iPhone 11 Pro | iPhone | otara GmbH - think quality!