> Now, I think we can all agree that, on our desktop computers, we prefer viewing the full-width layout of most web pages.
This assumption is not reflective of current accessibility research. For folks that regularly use browsers at high zoom levels, it's important for content to be able to reflow even on a desktop computer. This is disproportionally impactful for older seniors, who might struggle with instructions like "remember to put an m. in front of the url".
> Now, I think we can all agree that, on our desktop computers, we prefer viewing the full-width layout of most web pages.
This assumption is not reflective of current accessibility research. For folks that regularly use browsers at high zoom levels, it's important for content to be able to reflow even on a desktop computer. This is disproportionally impactful for older seniors, who might struggle with instructions like "remember to put an m. in front of the url".
WCAG 2.1 success criterion 1.4.10: Reflow is a good starting point for learning about this: https://www.w3.org/WAI/WCAG21/Understanding/reflow.html