The difference is enormous. First, Trump largely held steady among independents all of his first term. This time the dropoff has been almost continuous, from net -5% at the start to net -35% now. Second, at this point in his first term, Trump was at -19%. That is -35% now.

While the graph above is the national average, Trump's approval is under water in every state, although it is much less under water in the reddest of states. Still, under water even in red states is not good.