I just wrote a sample of our onboarding process in another comment, and it sounds similar. And yes, we were remote pre-covid.

When a person signs in the first day, they already have a bunch of meetings scheduled (meet and greets, explainers, etc...), some work assigned (I like to have a bit of a goal when exploring a new code base, but this work isn't expected to get done right away), etc...

It can be done well, but takes some thinking through.