VRChat seems to have landed on something close to the right balance of whatever it takes to make it happen. It's apparently easy enough for someone to make a whole meme world for an event in the news in time for it to be relevant: https://www.theverge.com/tldr/2020/11/9/21557029/four-season...
The video in the initial tweet is up to 2.1 million views: https://twitter.com/thecoopertom/status/1325710953305026560?...
VRChat or someone building on their proof of concept is likely to make it happen. It won't be Facebook with its VR Slack.