Congrats on finally linking your application. OWP is treated differently from PR application even though they were sent together.
First off, try not to compare the timeline of your OWP and PR, they are processed differently.
"W' means Work under their terms, just as you'd see "V"- visitor or "S" - student as the first letter followed by the numbers under most applications.
The moment you link your paper application on GC key account, it automatically changes to Online showing the date "Submitted" as the date it was linked. You should be fine.
So far, looks like you're good to go and should receive an approval for your OWP anytime soon (if no future review.
Thank you! Cant wait to be approved. Been idling for several months at home.