iPhone 6+ iOS 13 update

That's the highest iOS your iPhone 6+ can run. If apps you are trying to use say you need a higher iOS version, you will need to buy a newer device if you want to run those apps or features.

This won't actually help you but I know somebody will expect to see it posted here:

"Update your iPhone, iPad, or iPod touch" click here --> https://support.apple.com/HT204204

PGA Tour decided they didn’t want to support your 7 year old phone, not Apple. Apple does not force app developers to drop support for older devices; they do it voluntarily. What will your congresscritter do?

While you're at it makes sure you tell your Congressperson I need some parts for my 40 year old car that nobody seems to make anymore.

40 Years!

One of my cars is only half-that and I’ve already had difficulty finding a particular Electronic Control Unit.