Literally, Liverpool isn't as strong as in those season's when team like Manchester city were in top lead for the EPL title, like win matches with opponents completely hands down. What am I trying to say? Arsenal gave Manchester city the biggest pressures in all the seasons that City won the EPL trophy. Unlike what they are doing this season with Liverpool, the competition is not heated as Arsenal have been so inconsistent with their performance dropping points even in games they should win and take all points therefore leave Liverpool with little or no pressure in the race this season.
At the start of the season, the pressure actually continued to be on Liverpool because Arsenal were able to compete tightly at the start of the season. But towards the middle Arsenal started to be inconsistent and wasted several opportunities to get full points. The result is that Liverpool are getting further away and making the point gap between the two slowly get further apart. And yes, Liverpool looks like they can win the title more comfortably this season if Arsenal can't make the competition fiercer in the end. But all of that is also thanks to Liverpool's consistency, which has only lost once this season in the Premier League. So it is very natural for Liverpool to dominate well. Regarding Arsenal, they are still the same as last season. Where they can always only maintain second place in the end. Actually, it's quite sad considering that Arsenal have always struggled every season so far.
Every team is usually energetic at the start of the season and it's normal to see that Arsenal was showing that brief pressure. And I think it's no mystery that they started dropping form thereby cooling their pressure on Liverpool when they started losing their key players to injuries, beginning with Thomas Partey down to Bukayo Saka, a sad occurrence that depleted their chances of building points to compete with Liverpool.
With all of these happening, one would have thought that Mikel Arteta would have signed a super striker in the January transfer to help support the team because its obvious that was where Arsenal is lacking which was an advantage for Liverpool. Sadly, Arsenal continues to make mistakes that leads to them ending in second place on the table.