1) My spouse case was different as we applied for OWP later on during the process, and with the last correspondence received from IRCC (related to med results), it stated we need to inform them of any change of status in Canada along with a proof. So yesterday I sent a copy of my spouse's OWP via webform.
I guess in your case it won't harm the process to send it as well...
2) for my spouse application it changed around June 6th-7th, and we're Feb 2 applicants, so I guess it would start maybe very soon for you.
Thank you for your response. Helpful!