Well, I was doing cardio 5 days a week when I was doing it
I think it's just up to you for the most part. During the first 2 weeks - a month then I wouldn't do too much while you're still transitioning, but after that your energy should be pretty good. Some people can't do HIIT or run for more than 30 mins because of endurance, but that's not everyone.
I also see some people don't add in cardio till they start to plateau, so it's really up to you.