At least in case of GitLab, many of this is allowed (or even promoted) to do during company time. For example, if you go to the dentist for one hour you don't need to somehow make up for that. The same goes with Emails: the remote first culture means basically everybody fully expects it to take at least several hours before they get a reply.

In other words: I think this is more about the company, and less about remote versus non remote.