In the prior fence picture, a forsythia border was used in conjunction with a wooden fence....
David Beaulieu
The roses growing through this fence don't obscure it but do add interest.
In the landscaping photo above, it is rose bushes that are used in conjunction with a vinyl fence. The vinyl fence is rather plain in appearance, so having the roses spilling through its balusters enhances its appearance significantly.
In the next fence picture, you'll see another example of how rose bushes can work well with a fence....