No. I firmly believe Bernie would have done better. At a minimum, his Hispanic outreach would have been a lot more effective than was Biden's.
Would have done worse amongst African-Americans and would have lost a lot of suburban whites who are moderate and not interested in socialism. As for Hispanics a bit more complicated. In Florida would have done probably worse as Cubans hate even a whiff of socialism. Perhaps maybe better in Texas, but not enough to close gap and would have done worse in suburbs than Biden did so probably lost by as big a margin. In Arizona, Hispanics helped, but Trump also lost as he did about 10 points worse amongst whites than Romney in 2012 did and I suspect if Sanders had been leader, Trump would have gotten close to 60% amongst whites in Arizona instead of low to mid 50s.