Yes she can if she is a citizen of the Philippines. She can send the application sa VFS or sa kamaganak niya sa PH then that kamaganak can file the application sa VFS.
False, pwede ka maglodge kahit nasa anong bansa ka pero minsan kasi sa online pwede nila isend application mo sa country of residence mo so people tend to avoid online.
Yes meron. Iba ang eligibility ng PGWP.
Example are SAIT, NAIT, Okanagan and Fanshawe
Reference:
https://www.canada.ca/en/immigration-refugees-citizenship/services/study-canada/work/after-graduation/eligibility.html