At a time in this season too, Arsenal was not consistent and they were losing and winning but now they are trying to be consistent I was impressed with skills and pressures yesterday against PSV Eindhoven in the Champions League. But even at that I don't think Liverpool will give them chance to take over them in the Premier League. Liverpool has plan everything to take this season trophy so whoever that is coming they are ready to crush them. Arsenal might take the second position in the season and the first position is Liverpool (reserved). But the table might turn if a team plays exclusively as you said.
I am bit surprised Arsenal won with the big score on champions league last night. I am pessimistic they can't handle that match based on what happened in the last 2 matches on premier league. But Arsenal proved that they are worthy of a top standing in the premier league. So, if it's for the premier league title, I think it's mission impossible to shift Liverpool's position. The realistic is they can better to struggle more step to champions league, but of course there is too many struggle to get more advance to next round. Arsenal should be thing who is a quality player to change Saka's role because so far, the existing players are not credible enough to replace that crucial position.