Your free personal Ubuntu Pro subscription does in fact cover as many VMs and containers as you can run on up to five personal machines, as the OP well knows. I like that we make Ubuntu Pro, including universe updates, free for anyone running at small scale.
Thanks for the reply and the correction. I've updated the post to reflect this. I'm sure it will be helpful for others, as the UI doesn't reflect that these containers do not come out of the overall allocation. As you'll see in the screenshot I've added, it looks as if these are being counted as 8 physical machines against 5 tokens.
