The reasons could vary depending on which team will win the match, but I see it differently, as there is a possibility of a draw, reminding both teams that they will be cautious enough to avoid dropping points.
One striking difference between the 2 teams is that Liverpool have conceded 4 goals, while Arsenal haven't conceded in their previous 2 matches. Both teams are performing equally well in attack, although Saka was absent from this match, but Arsenal still have reliable substitutes.
According to the bookmakers, Liverpool are the favorites, most likely because they are playing at home. In the previous match, Liverpool hosted Bournemouth and conceded 2 goals. Therefore, a draw is still possible, but the best betting option is most likely BTTS.
You are correct right now Arsenal is more informed than Liverpool, judging from the few matches this teams have played this season it is clear that Arsenal is more informed than Liverpool and they are more determine to lift the premier League title since it has been long they lifted it and they are very eager for it right now, I will bet on this match and my prediction will be Arsenal to win.
This match will be an interesting match and I cannot miss it for anything a lot of goals will come out in this match, Arsenal will score Liverpool 2 to 3 goals right now Liverpool defense is not that strong so Arsenal has advantage of winning game, some set of people will say Liverpool will use home advantage to win Arsenal but that will not happen in this match I'm sure that Arsenal will win this match.