Following are the steps:
Open a chrome tab>press F12>you will see some pane opening up on the right>click Network in that pane>then click Fetch/Xhr
now go to
https://prson-srpel.apps.cic.gc.ca/ then sign in and click view application
on the right click on "cases?phase" > then click Preview on its right
Then click on the arrows to see more notes
Check your Case Status ID, documents, and the date when your application was last checked by the assigned case worker.
I submitted my application on November 25, 2021. When I first tried the F12 trick and up until April 8, 2022, I saw that the application was last updated on January 29, 2022, and all my documents showed “null,” indicating that the case worker had not started reviewing my documents. On April 10, 2022, I tried the F12 trick again and saw that the application was last updated on April 8, 2022, and my documents showed “document approved: true” which means the case worker started reviewing my application. Status ID was changed from 7 (“submitted”) to 10 (“completed”). I did not receive any ghost update. I received biometric instructions letter on May 9, 2022.