How much tasks/ hrs are you able to get with the generalist role in the big project (with 23k people)

Hey! Today I just for access into the portal to be able to do the quiz for the project. I do a 9-5 job and I also like to workout for 2 hrs atleast … and i possibly only have around 2 hrs buffer in the day to be able to work on the project. Do you think I will be able to do 2 hrs of work during this time? I mean, is there a lot of waiting around to do the tasks? - possibly from 8:30 - 10:30 PM