I don't have a smartphone to test on. What happens without this?
You essentially see the desktop version zoomed out by default with tiny text. You need to zoom in, but the line length is still desktop sized so you need to scroll left and right as well as up and down to read it.
If you want to see it for yourself: https://developer.chrome.com/docs/devtools/device-mode
You essentially see the desktop version zoomed out by default with tiny text. You need to zoom in, but the line length is still desktop sized so you need to scroll left and right as well as up and down to read it.
If you want to see it for yourself: https://developer.chrome.com/docs/devtools/device-mode