Will a Godox Thinklite TT350N works well with my Nikon d7200 and Tamron 70-200 f2.8 G2?

1. Knowing the flash is small & my lens is long, will I have issues with it? The light from my flash might be covered bec of my lens?

2. The flash supports 24-105mm auto/manual zooming. What if I'm in 135mm or 200mm. What will happen to the power input?

3. Is there other known issues for this flash using on a nikon body and 70-200mm lens?

I would like to purchase this flash bec it's small and light but I'm worried for the performance with my existing system. Most of the time it will be used for indoor events.

I would be rare that you would use an external, on camera flash using such a long lens.

Those small flash units are designed for use when a 24-70 mm or 24-105 mm lens is attached to the camera, however, when you start shooting subjects at the long end of the focal length of the lens and close to the camera, the lens will cast a shadow because the lens sticks too far out in front of the camera.

If you use the camera's onboard flash to trigger the TT350N with it mounted to the right, left or slightly behind the subject to trigger the TT350N used as a slave flash, that will work.

The most that can happen is the shadow of the hood coming up on the photos. If that happens, shoot without the hood. I'm guessing the flash is tall enough to avoid this anyway.