Of course, this is a big opportunity for Liverpool to win UCL if they are determined and stay focused. They are still keeping up with their good performance, so it should be a good advantage for them because the big boys are not too strong this season. However, I think Barcelona can be a hinderance to them from achieving the trophy this season, because they are not as weak as City, Real Madrid and Bayern.
I even think that in this season Liverpool could get three big trophies at once if Liverpool's consistency is still stable and not disturbed by any conditions. But when this leads to the Champions League, of course the challenges that Liverpool must face become more difficult even though Liverpool's own strength is still quite a lot to make them a strong candidate to win the trophy in the Champions League this season. Barcelona can indeed be a serious barrier for Liverpool, but Real Madrid can also be an opponent that every team must be wary of because Madrid often makes extraordinary comebacks in the Champions League even though Madrid is currently in a less good position in the standings.
Yes, they have the opportunity to achieve a treble winner this season, with the note that they continue in good performance like now until the end of the season, that is the only key if they want to get great success this season.
If that really happens, then it will be a very extraordinary season for them and also for the new coach, yes I'm sure he will get a lot of praise from everyone. But this is not easy, they must be consistent with their good performance, if not, then don't expect it to be felt.
Their problem is at the end of the season which often slips, this is Arne Slot's job so that they don't repeat the same mistakes at the end of each season.