No. Despite a bigger battery and the Aluminium Alloy body, Nokia 7 Plus does not have any abnormal heating issues.
Nokia 7 Plus front camera is 16MP and it has an aperture of f/2.0.
Yes, Nokia 7 Plus does have the headphone jack, which is located on the top panel of the phone.
No. Nokia 7 Plus does not have the front camera flash. But the display of the phone works as a flashlight in low-light conditions.
Great battery life, immersive display, solid design, and software at its purest, that's the Nokia 7 Plus for you.