I've worked at two companies that have embraced remote work, and are hiring "anywhere", though still obviously limited by language, jurisdiction etc. The changes I've seen are mainly cultural: preference for asynchronous communication and preference for structured coordination over ad-hoc. So fewer meetings, and those that remain tend to be standing meetings on a regular schedule with a defined leader and consistent agenda, and they often get cancelled or ended quickly if possible. Slack tends to be more asynchronous; you're not expected to respond right away, and people turn off notifications when they need to concentrate. Waaaay less email, to the point where it's mainly meeting invitations. More writing and documentation, but even then, a preference for things like Jira, Notion, Coda or Team Retro over more unstructured tools like generic documents or spreadsheets.

Now obviously none of that is new or confined to remote-first organizations. But I do see deliberate thought about how to collaborate more effectively, and how to mitigate the downsides.