+1(514) 937-9445 or Toll-free (Canada & US) +1 (888) 947-9445
Read though the information provided above. Due to covid-19 there are special rules in place. Study permit is needed assuming your friend is outside of Canada.
The link I provided above states that a permit (due to covid) is now required. If your friend is in Canada then no study permit required.
yes you are right

it states

If you want to study for 6 months or less
Due to COVID-19, if you want to study in Canada for 6 months or less, you’re now required to

You won’t be able to travel to Canada if you don’t have a study permit and your DLI isn’t on the approved list