In full HD 1920px : we see here that the image is displayed in size 1158px while the cropped image requested from the server is 921px

Template : page (not page 2 colonnes)
the page to see this example if we assign it a "page" template : https://demo.ametys.org/nightly-intranet-cms/preview/intranet-cards/fr/mon-organisation/actualites/intranet-bureau-virtuel-et-reseau-social.html