Finally done and dusted. Haven't landed yet but I have my COPR in my possession.
Things went a little differently for me after PPR so I'll document that a little bit.
October 18th; Got PPR but it was asking to post to Ottawa while I was living in Europe so I asked for a change of VO.
October 25th; I got my new VO and new instructions to send everything needed to London.
October 27th; Upload passport scans, updated bio info (eye colour, height, etc...) and a copy of the email to MyCIC. I did this through the IRCC Web Form.
November 1st; I sent 2 pictures along with a self addressed envelope to the London Address. Unfortunately I only had envelopes smaller than A4 (I sent an A5) but since I wasn't sure I needed to send the self addressed envelope I didn't really think it was a big deal and sent it anyway. For future reference, you should send an envelope, and it should be at least A4 size.
November 3rd; Received confirmation for documents uploaded through IRCC.
November 8th; My application was approved and closed.
November 11th; My COPR arrived in the mail (they sent in back in a new envelope of appropriate size).