Another cashflow idea, as if you don't think of many yourself: A white-label version of Element (called something else) that can be deployed as scoped to an organization and based on an LTS release schedule. We'd gladly pay for this.
Here's a couple of links:
https://element.io/blog/custom-branding/
https://element.io/blog/a-white-label-messaging-app-to-creat...