Hi @VinothSampath,
Did your friend file both old and new Visitor VISA application through GCKey or new IRCC portal? Anyone has heard about reapplying Visitor VISA for spouse using gckey portal if one application is already in progress? Primary applicant has approved work permit but hasn't travelled to Canada till now.
I checked with IRCC support by email and also spoke to a VFS person. Both said there is no difference between applying on IRCC new portal or GCKey portal. Both lead to the same backend apparently. Atleast for visit visas....