No. Nokia 7 Plus does not have the Optical Image Stabilization but it does have Electronic Image Stabilization.
No. Despite a bigger battery and the Aluminium Alloy body, Nokia 7 Plus does not have any abnormal heating issues.
Yes, Nokia 7 Plus does have the 4K recording support.
Yes, Nokia 7 Plus does have the bokeh mode in front camera.
Nokia 7 Plus front camera is 16MP and it has an aperture of f/2.0.
Great battery life, immersive display, solid design, and software at its purest, that's the Nokia 7 Plus for you.