Saving a Cycled rendered image, how?

Rendering in Cycles, which should I use to actually render in Cycles? F12 or the ‘Renedered’ option under Viewport Shading? And which option is best to save an image from?

If you use the rendered viewport you will have to take a screenshot of the 3d viewport
Use F12 and then when rendered use F3 or the Image / Save as Image menu in the render window

Thank you, Richard. With the F12 Cycles option, where do I set the render quality or number of passes? With the Viewport option you can set the Samples amount for the Viewport in the Preview setting? Is there a setting for the F12 option to increase the quality/time as there is in the Preview setting?

its right beside the preview setting. where it says “render”