Hi,
I don’t think that is the case because this page has the same: http://liberi.jsierink.nl/approach/biotech/
And that image is smaller.
But even if the image is too big it should resize to full width.
The issue is on my laptop with 1366px wide screen the same as on a screen with 1920px wide.
It looks like Elementor is calculating the width of the viewport and applying it to the slider. The issue is you have a border, which is adding to that calculated width, causing the scroll.