So, this is an ad for a specific experience, but they're generally actually high-quality experiences as other commenters pointed out. There is a limit to what will run on the quest 2 - a sub-$500 all-in-one VR platform that runs on a multi-hour battery. A beefy 3090 based system could render something better, but you couldn't wear that on your face and run it from a battery.

I'm sure you didn't click through the details of the tweet you shared (is it still a re-tweet if it's off twitter?) but the demo actually runs in browser and the location is algorithmically generated based on your stated interests.

The environment in the example looks like it was made in Horizon, their VR sandbox world-building game. They surely could have made it look fancier by using actual 3D modeling tools that games actually would, but this "VR Mainstreet" has the potential to be re-created by anyone using simple (IMO) tools they provide. If the goal of "VR Mainsteet" is that brands can make their own storefront in VR, showing what they can do with "non professional" seems like a good ad for the brands building things. The injection of insta-posts is because its trying to share the insta-profiles of small businesses. Its a weird demo, but its a web-rendered demo so it seems fine to me.

It's just an ad, they only have so many resources to dedicate to it. Marketing teams do what they have budget for, this "quality" seems more an MBA issue than a technical issue.

Ps: It sure is fun to shit on meta lately :)

PPS: It would be really cool, and an exciting development if they got Horizon to run in browser, it could make it easier for people to develop 3D rendered worlds and share them.