Throughout the process, this website has helped me a lot and I am very grateful to all of you because I have been able to follow your journey. So I wanted to share my timeline in case it could give people an idea:
My spouse's country: Bangladesh
Visa office: Singapore
Application sent - October 31, 2021
Application received - November 8, 2021
Request for biometric fee: March 3, 2022
AOR 1: March 4, 2022
Application for CSQ sent - March 10, 2022
QSC application returned: March 26, 2022 (they needed the original signature, but I couldn't since I was outside of the country)
Application for CSQ re-sent: March 29, 2022
AOR 2: April 7, 2022
Additional document requested: May 9, 2022 (they requested the document IMM 5532 although it was already sent with my application)
Biometric data request: May 11, 2022
Eligibility begins: May 11, 2022
CSQ received and sent to IRCC: May 19, 2022
Biometric completed: May 28, 2022
Eligibility completed: November 20, 2022
Medical request: November 21, 2022
Pre-Arrival letter: November 22, 2022
Medical examination completed: November 22, 2022
Background check never started, but was updated to complete on: November 27, 2022
Medical exam was updated on: December 5, 2022
Awaiting next step...