Pandemic wasn't the entire year for 2020.  Started during March

But home offices and other W-2 job expenses have not been allowed at the federal level since 2018.  They didn't change it back for 2020.  At the state level, some states still allow the job expenses.  Basically if they allowed them before 2018, they still allow them now.  For example, NY does. NJ didn't before, so they don't now