You think there’s a standard way to do that? Just install company portal? That worked in exactly 1/20 cases. It’s an exciting new error on every single device. Awful. Just awful.
But if you also wanted identity, there are plenty of free selfhostable SSO/ID providers out there. If you're just starting out and not at the scale where a big Microsoft CoPilotM365OfficeWhatever contract makes sense, you probably don't even really have a need for a lot of this stuff. A minimum contract for Jamf Pro is like $5k a year or something. That's two well kitted developer MacBook Pros per year in license costs.