Liverpool has the advantage in this match and can win it to advance to the Europa League semifinals. Football can be an extremely unpredictable game, with what everyone sees and expects changing as the unexpected occurs. Even though it happens infrequently, we cannot rule out the possibility that it will occur in this game as well. Atalanta is not a weak team, but their chances of qualifying from this stage are slim, and their statistical performance cannot be compared to Liverpool's. Whatever the outcome of this game may turn out to be, I am more confident that Liverpool will win this match than Atalanta even coming close to winning it.
Against Italian teams is not always an advantage for Liverpool and I think Atlanta is also not a weak team that they will easily face in the quarter-finals, as far as the Reds are still unbeaten in the Europa League and even they are able to show an outstanding performance in the league, but honestly Atlanta could be a stumbling block for Liverpool to reach the Europa League final this season, When playing at home, Atlanta looked to play quite well and even they were able to hold a draw and beat the big teams in the serie A.
We admit that Liverpool on paper is the favorite team in the match later, but I think Liverpool should not underestimate Atlanta in the quarterfinals later, because the possibility of surprises in the match could happen especially now that Atlanta's main focus is to win the Europa League trophy this season, besides that the rarity of the two teams so far meet certainly makes both of them blind to each other's strengths.
I personally believe Liverpool will be able to win against Atlanta and score a few goals at Anfield but it looks like a draw will happen in the second leg at home to Atlanta.