Juat a piece of information for others in this road, in my case, after informing IRCC of my marriage (02 June 2021) and sending ALL!! the required documents via multiple webforms, my spouse got added to my profile after one month on 2nd July 2021. Interestingly, on the same day, the responsible officer asked me to submit IMM5562 form (travels history), communication proof, and a questionnaire for the spouse on our spousal relationship (asking our relationship history, i.e. first date details, development of our relationship, details on our marriage and engagement ceremony, photos on our marriage and engagement, travels, dates and outgoings). There was only a 7 day deadline for such forms.
I suggest you guys to be prepared for these kind of forms, as it wasn't a piece of cake for me at all, i had several unslept nights, even with having a 6 year old relationship and tons of photos together in several occasions.