So honestly around 70% of backgrounds are not worth buying as you can barely see half of them whilst on steam.
You can zoom out on your browser whilst in your profile and you'll see a perfect fit for the background which honestly should be doable in steam itself.
Here is my profile zoomed out to see my background properly.
Steam background/Profile zoom
You can zoom out on your browser whilst in your profile and you'll see a perfect fit for the background which honestly should be doable in steam itself.
Here is my profile zoomed out to see my background properly.