Thank you Ross,
The solution you gave me works perfectly.
Now I have found another inconvenience. I only activate the slideout with the Search and Filter Pro filters in the mobile version < 768px wide here: https://saveursducanadaeurope.com/importateurs-distributeurs/
For the desktop version I use in the sidebar the same Search and Filter Pro shortcode as in the slideout but I hide it by css in the mobile version.
So in mobile version you only see the filters of the slideout but the results are affected by the filters not active in the sidebar that is only hidden by css but remains working.
Is there any way that in resolutions of < 768px I can disable the shortcode of the sidebar and activate the slideout or some other way to combine both in the same page but without interfering?