Not usually, no.
I heard about this once for a company that did a test before job interviews. The applicant was given a sheet with a list of instructions to follow on the company's web site. The first step listed was "Type in companyname.com on the browser's URL bar". If the applicant typed in "www.companyname.com" instead of "companyname.com" the interview ended there and they were not hired.
That is absurdly draconian.
Anyone who's ever worked in any IT or tech job will tell you it makes sense. Technical instructions need to be followed verbatim. Throwing in things or leaving them out because of habit or because you feel that's how it normally should be done results in things not working. For an example, check this out, which is probably one of the most browsed pages on the web:
https://maps.google.com
And now click on this:
https://www.maps.google.com
And now you see why adding www. before a URL if not specifically specified is not an acceptable web browsing habit.
I know that. It's just that that seems like the sort of thing it would take five minutes to explain in on-the-job training, at most, unless you were dealing with somebody whom the interview process probably would have weeded out on some other grounds anyway.