Have you ever encountered a real asynchronous work culture?

The most famous example is probably Gitlab (https://handbook.gitlab.com/handbook/company/culture/all-remote/asynchronous/)

Since their IPO the work environment seems to have deteriorated though (https://old.reddit.com/r/devops/comments/152o4bb/what_the_hell_is_going_on_at_gitlab/)

Curious to see if other people have any experience of real asynchronous work culture?