If I hire someone who wants to be an indie dev, how much of their side projects are they going to do instead of the work I need them to do? I have been on 2 te

If I hire someone who wants to be an indie dev, how much of their side projects are they going to do instead of the work I need them to do? I have been on 2 teams where a member had a 'tech' side business. They spent each seemed to spend 4 to 8 hours a week on their side hustle, while supposedly working at their job. I currently have a co-worker (we do not work on a team together), who has a side business with his family doing indie games, but I have never seen him work on it at work.