Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
because GoDaddy will deactivate it after a while (this is only intended to be used to move domains, not as a permanent production use case).
So for proper use you will have to move your domain over to GoDaddy.
There's no way around this.
After that just follow the FAQ.
It's all really straightforward.
My domain cannot be transferred to GoDaddy. But I've parked it on their DNS servers starting November, 2018. I've mentioned about my scenario in one of my November's or December post. Since that time I've been using it for integration with my Outlook Premium for personalised email address with success. So far there was no issue.
I've also setup another zone which I don't use, just for a test and it hasn't been removed so far.
So, my case proves that it works without buying any premium service from GoDaddy. Despite of that I cannot guarantee any durability of that solution.