I have applied visitor visa for my parents who are in India and both hold USA non-immigrant visa. I applied in January and still have no update.Hi guys, I just checked that there is something known as CAN+ visa processing. If you have visited Canada in last 10 years or if you currently have valid US non-immigrant visa. Under this, visas are processed on priority basis and people generally get results in 3 to 5 working days. Their case is generally processed in CPC, rather than local visa offices which are pathetic (Delhi IRCC takes 5 to 6 working days just to put visa sticker for approved cases, so you can imagine). They also don't need to submit any financial documents, probably that's the reason why many people didn't had the financial document section for uploading.
I was mentioning it here as I saw many posts/conversation where people mentioned having US visa does not have any impact on US visa process. So I am not sure how many people dont know about it. I don't know the situation due to COVID, but getting US visa was quite straightforward. One can give US visa interview, can give reason like holiday in Hawaii, and kids would be joining from Canada. Get US visa and then apply for Canadian visa, when you are sure it would be processed in Canada CPC.
https://www.cic.gc.ca/english/helpcentre/answer.asp?qnum=877&top=16
https://www.uiis.ca/visitor-visa-can/#:~:text=Answer: CAN+ is a program,of their Canadian visa application.
Not sure if the file was sent for expedited processing.