I suspect some of the commentards missed the point.
Even if you were switching between two products that support an Open Document Format you incur costs to switch, it’s not free and open. You need to train users, you need to train support staff, and you need to deploy the software. Digital independence does not exist unless you tell staff they can choose their own software as long as it writes open document format, and they’re supporting themselves. And no enterprise, business or authority would consider that a viable option yet.