1. Switch to viewport render from the top right icon furthest to the right.

2. Turn off the light in the Outliner.

3. Select the Context World icon.

4. Next to the Color field click on the circle button.

5. Select Environment Texture.

6. The viewport will turn purple pink, meaning image is missing.

7. Click on the Open folder icon.

8. Locate your HDRI image and open image.

9. Your HDRI enviroment image is loaded into the scene.

This Blender Guide on Design Sync offers [...]

1. Switch to Eevee viewport render from the top right icon.

2. Select the Shading arrow dropdown icon to expand the menu.

3. Select the Gear icon. A popup menu will appear.

4. Click on the LookDev HDRIs Install button.

5. Locate your HDRI image.

6. Go back the shader menu and select the HDRI sphere image.

7. You will see your recent installed HDRI image. Select that image to activate that HDRI enviroment in the viewport.

This Blender Guide on Design Sync offers quick tips and tricks for [...]