Is Apple currently experiencing technical issues that are affecting iPhones?

There are no systemic problems at this time. See here: Apple - Support - System Status

What problem do you have?

Is there a tech issue with affecting Iphones right now

If there was, this site and other support sites would be flooded with posts. They are not.

It would help tremendously if you were to indicate what problems you are experiencing and why you believe them to be systemic.