There is a way that ArrayFormula can work with sparkline. I have been using this formula in my spreadsheets. You don't need to have sparkline formula in every cell. With only one formula to one header cell, it can generate sparklines across all the rows. Let's say you have data in column B2:D. You can copy this formula to cell A1. This will generate sparkliness across all the rows from row 2 in column A.

=ArrayFormula(MAKEARRAY(ROWS(A2:A),1, LAMBDA(row,col, IFNA(sparkline(OFFSET(A2,row-1,0,1,3), {"charttype","column";"color","green";"negcolor","red"})))))