My team has embraced a number of these suggestions and has really focused on the humanity angle in a number of ways. Our HR team has offered online open office hours, our management team has started weekly briefings and we often do a Friday 4pm online happy hour (often with a theme of some sort).
Our operations team had recently opened up a Workfront support request queue that has gotten more "hits" as this social distancing mandate has gone on. We've found that it adds flexibility and a faster response rate compared to emailing an admin directly as we are all handling work and home life simultaneously and may not be available to help as quickly as normal.
Something else that has helped has been continued normalcy of our operations. We m ay not be able to meet in person, training may be more difficult, but we are not letting that hamper our plans for overhauling and improving our Workfront instance and best practices.