This is not a landing page. Its a tech demo page. And is very impressive, because they render ALL components and variations in just one page, at same time, getting a highscore on lighthouse, without errors or warnings on W3C HTML validator too. They delivered a high quality code.

This was my first impression as well. The layout options just didn’t work on mobile

Welcome to the future! We better get used to it.

Are you being a troll, or is there a trend afoot to ignore mobile rendering?

The trend is people releasing barely conceived software and products written by language models, backed by equally thoughtless marketing materials written by language models.

I have a suspicion that he was not asking in good faith. We'll see!

It is a shallow trend to ignore or on-purpose worsen mobile experience and force users to mobile apps instead of using the browser version.

Though I'm not sure if this can be applied in this specific case.

Everyone who has me learn or notice something is a troll.