Switch from 1099 to w2

My wife has worked as a church organist at 3 different churches in 2020 and previous years.  She used to get 1099s from them, but in April of last year, the one she is primarily playing at switched her from 1099 to w2.  The other two were small amounts (300 and 125) which the churches didn't send either a 1099 or a w2 for (presumably because the amounts were too small)

Can she still take her home office and mileage expenses as a self-employed person?