Since pandemic there are a ton of real companies making actual money and willing to pay for things (!!!) who are using M365. Something like 85% of companies, in fact.
I so often see products starting with e.g. Google Docs integration or dev tools integration, and feel as though, okay, you're scratching your particular itch, but please won't you wake up and let companies with money give it to you?
Start by adding "Sign in with Microsoft" and support the Work/School accounts not just personal. Boom, you just expanded your reach by becoming frictionless to the 85% of the market you were not previously catering to.
Also consider answering the Teams integration and Microsoft TODO object integration threads. They're sorted in your planned columns, with not a peep in over a year.
PS. Don't forget Sign In with Apple. If there is a group as apt to toss money at you for productivity as people with Gmail, it's people with iPhones and Macs.
TL;DR, your login should look like this:
https://www.xsplit.com/user/auth?redirect_to=%2Fdashboard%2F...
We didn't do it so far because our main problem was product-market fit, and increasing the addressable market was secondary.
I agree with everything you said, and thanks for the suggestions!
Regarding the CAC, so far the vast majority of our growth was organic we invested very little in paid advertising.