Is a full-time can be called passive income? I think not. Passive income - this is where your participation in profits minimal. Well, except that if you are at work doing nothing
Doing nothing doesn't count, you should do something else for it to be counted as passive income. Kidding aside, quite a lot of jobs are paid for doing exactly that. I mean doing nothing since when you are doing what is required by your assignment, that might mean something has broken or out of order, for example, many repair and maintenance jobs are like that.
And I wouldn't count that as passive income.