Update:
For virtual landing.
Parents are back to canada yesterday morning. Sent email to IRCC PR portal Etobicoke office with updated information. In the afternoon received email from Pr potal etobicoke office for PR portal login. In the eveing on PR portal upload the photo and confirm the address. Now waiting for COPR.
We did apply apply for health card and ontario photo ID with PR appoval letter. Since parents are here since 2019 on supervisa and two times extension they meet the eligibility for OHIP as 153 days stays in ontario. Got health card number so since yesterday health coverage start even virtual landing not done yet.
In short with PR approval letter you can apply for OHIP if you meet their other eligibility.
see my signature for detail info.