Open a picture and duplicatie the layer
Convert the top layer to a Smart Object (Ctrl click on the layer)
Now go to Filter > Camera Raw Filter.
You can find the vignette functionality in the effects panel
Drag the slider to the left to create a dark vignette and set a midpoint that fits with your picture. Hit OK to leave this screen.
If you are not satisfied with the effect, just double click on the camera raw filter in your layer panel. Because it is a smart filter the camera raw filter will be opened again and you can change the amount.
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picture from pixabay.com