That's true, they will now concentrate on premier league since there is no any other title they're competing apart from premier league. So I think liverpool will be very consistent this time, since psg have relieved them from going through the champions league stress. Though is so funny to say this, but that's the fact. However, I think there is nothing for them to worry about because the point distance is very huge of which you and I know that the possibility for any team to come from behind and win the title is 0% because I can't even imagine this happening.
Liverpool's failure to progress to the next round of the Champions League will see them focus more on the Premier League and Liverpool also have one of their best chances in the EFL Cup if they can beat Newcastle in the final.
This is the best chance Liverpool have and for the Premier League itself, it will only take a few games before Liverpool confirm that they have secured the Premier League title.
The challengers in second place are unlikely to catch up with Liverpool as they have a slightly bigger gap, so Liverpool's chances are much greater.