Yes, Nokia 7 Plus does have the electronic stabilization.
Nokia 7 Plus has an ambient light sensor, proximity sensor, accelerometer, e-compass, gyroscope, fingerprint sensor and hall sensor.
No. Nokia 7 Plus does not have the Optical Image Stabilization but it does have Electronic Image Stabilization.
Yes, Nokia 7 Plus does have the OTG support.
Great battery life, immersive display, solid design, and software at its purest, that's the Nokia 7 Plus for you.