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Full timeline:

Applied - December 24th
Biometrics Instruction Letter - December 24th
Biometrics Completed - December 27th
Decided to do Medical upfront - December 31st; submitted via webform on January 3rd and receipt confirmed by IRCC on January 6th
Passport Request and Decision - January 13th; passport sent on January 14th via VFS and received by IRCC on 16th

During a call with CSC, they mentioned that the visa was processed as regular visitor visa. At first I ignored it, thinking they were wrong but @Hot2Cold 's story made me check again and it was confirmed that the visa is a regular TRV.

A CSC Agent sent message to the Processing Office & I also submitted a webform for reconsideration - January 21st
Medical Passed - January 29th
Final Decision - Approved date changed from January 13th to January 28th

Confirmed later with CSC, visa was changed from regular TRV to a Super Visa, luckily they hadn't printed the TRV and/or sent the passport back. Good luck to everyone!