The new format only favored Liverpool, because they are the first on thr table and won their matches. A lot of factors also affected the big clubs including the new format. This season big clubs were hit with injuries and it swept them of their feet because they weren't prepared for it. Clubs that we didn't expected are the ones surprising us.
I don't agree with what you said about this new format benefiting Liverpool, where is the advantage? they also play the same tough matches as the others, meaning Liverpool have prepared this season well and seriously, just look at Liverpool, not only strong in the UCL but they are also strong in all competitions, there is no mutual advantage here if the club can perform well, anyone deserves to occupy the top position in the standings, including clubs that are not too favored.
Liverpool are a good team and they have started the season well. They have dominated everywhere from the English Premier League to the Champions League but the problem is the lack of substitute players in their squad. Liverpool will be in big trouble if for some reason Mohamed Salah or any other key eleven player gets injured. If they lose to other teams after performing so well just because they don't have support players then it will be a matter of regret for them.
With the transfer window open ahead, as Liverpool have a lot of potential to do well, they will need to spend some money in this transfer window so that they can replace players from the starting XI if multiple players are injured.
Planning like this might be good for them this season.