Photoshop: what is the best way to select such objects?

Question

Design

I want to learn how to make presentations of products in web design, as in these examples:
Example 1 , Example 2 , Example 3
But I can’t understand how best to select such objects in order to get rid of the shadow, etc. There are always borders of the selection and if you use " Pen Tool" , and then "Refine Edges", then the edges of the object are either blurred, or remain too obvious, or part of the object disappears. I watched a course on lynda.com on this topic, but it's more about the principles of selection tools and mask than practical application.

So I want to answer two questions:

1. How, in the example above, is the fastest and most accurate way to select an object for further collage?
   
2. How to learn to make good product presentations? Are there tutorials on this topic?
   

Thanks in advance.

Answer 1

In Photoshop, with the pen tool, go around the path, then convert to a selection, then Selection - Refine Edge and adjust with the parameters you need
This way you can almost perfectly cut out the desired object

Answer 2

I think the secret is patience.
Use standard photoshop tools.
Personally, it freezes me carefully to cut out pictures when a client can say - what the hell! - I found another picture. Sore ... sorry

Answer 3

There is a high probability that in the given examples there are not photographs, but renderings of 3D models. For example, IKEI catalogs use renders everywhere. Entire furnished kitchens and apartments, not to mention individual stools.
In the picture with ... I don’t understand what it is, but in this picture there is a uniform background. Therefore, you can use the fill eraser (Magic Eraser Tools).