That is a very optimistic view! I decided to make a presentation in OpenOffice recently instead of Google Slides. It actually couldn't even show my bullet points in the right order. It revealed them like 1, 3, 2.
I guess you can make it work and the sovereignty & financial savings for a large number of users is maybe worth the pain, but let's not pretend the Linux desktop is really close to Windows/Office in terms of quality and reliability.