CSQ Approval is a stage where Quebec Applicant's CSQ Application is accepted by MIDI and documents are posted via mail at Sponsor's Address along with Certificat de sélection du Québec (CSQ).
IRCC is automatically informed by MIDI that CSQ have been issued, however it's advisable to inform IRCC via webform/email that CSQ have been issued, attaching scanned copy of CSQ.
If you want to request English copies of these documents, demand MIDI in writing. It says "English copy available upon request" on following document.
From the day MIDI received CSQ application, it took 23 days to have CSQ processed, issued and delivered to SPR's adress. via Canada Post.
This is what you should be expecting in your mailbox.