Heavy work in the last week?
Who tf gives detailed competitor analysis and user segmentation task without any proper analytics tool configured to a Product Manager who has only one week(5 working days) left in his notice period? This is in addition to the KT I have to give to another PM. Aisey managers ko kya karna chahiye? Want suggestions in the comments... Aisey kisiko hua kya? Pura weekend kharab kardiya š
You do not need to deliver it by working overtime.
The most professional way to handle this would be to do it at the normal pace you would have done if you were still continuing at the job. Account for the time lost in KT sessions. It has to come out from normal working hours. A day before your last day, handover the current progress and do the KT on what more needs to be done and if you had some plan on how someone can approach the remaining piece.