When you are on a newsroom the default layout has the search and facets in the sidebar before the main content, whereas once you are on a news article OR have entered a search term or facet the search and facets are in the sidebar after the content.
Ensuring that repeated components occur in the same order on each page of a site helps users become comfortable that they will able to predict where they can find things on each page. This helps users with cognitive limitations, users with low vision, users with intellectual disabilities, and also those who are blind.
When you are on a newsroom the default layout has the search and facets in the sidebar before the main content, whereas once you are on a news article OR have entered a search term or facet the search and facets are in the sidebar after the content.
https://demo.localgovdrupal.org/news https://demo.localgovdrupal.org/news/search?f%5B0%5D=category%3A7
What was the motivation for the different placements ?
The change in layout (particularly on the search pages) seems unexpected, and could be confusing.
https://www.w3.org/WAI/WCAG21/Understanding/consistent-navigation.html recommends that repeated content within a set of web pages occurs in the same relative order.