Viewport screenshot / compare tool

Hello all !

I’m coming to Blender from C4D and I love it !
There is one thing I am missing when I do shading : In Redshift or Octane, you are able to quickly screenshot the viewport, and either save a bunch of screenshots (Redshift) or make a A/B comparison (Octane).
I find it very useful to be able to do that, just to check some shading parameter, light positionning or whatever, instantely without having to wait for samples clearance, and being able to do a quick A/B.

Is there a shomehow similar tool or workflow in Blender ? I have searched but couldn’t find anything.

Thank you in advance !

You’ll find screenshot here:
image
For comparisons inside of Blender, I’m not sure.

Oh thanks I didn’t know that !
With the ability to go back to 3D viewport with Esc key and Slots it makes a decent workflow going into that way.