It will be difficult for Liverpool to win Manchester city in this match, because Liverpool are still facing some challenges in the areas of defense and striker which is really causing Liverpool not to perform well in some friendly match that happened few weeks ago. I think, Manchester city will defeat Liverpool 3-1 for the favour of Manchester city because Manchester city is well organized in this season than Liverpool. I believe, Manchester city coach will still bring more new strategies that will help their players to ensure they defeat Liverpool.
I don't believe Manchester City will have an easy match and Liverpool consider this match is very important for them too. It will help them to have a final test before a start of Premier League 2022 - 2023. Manchester City will still be the biggest competitor of Liverpool in Premier League. This match will help the winner to get better confidence on their race for Premier League championship. Very important for both clubs so this match is very tough for players and exciting for audience.
Liverpool did get a less than optimal result in their Pre-Season, where they lost to Man United 4-0 and lost to Salzburg 1-0, but that doesn't mean their performance will also be bad when they face Man City in the Community Shield tonight. Liverpool is still a strong team that can match Man City, and I think they will definitely play their best because it's not Pre-Season anymore. This match is like a proving ground for Haaland and Darwin Nunez, 2 talented young strikers who have high prices will be in the spotlight.
The main points of pre-season training and friendly matches are not to get optimal results. All of these things are for best results in real season and with pre-season time, clubs can figure out what are their weakness and how to fix it gradually in order to get as strongest performance as possible in real season.
It helps clubs to find out how to take advantage of best ability of their players. It is for training, fixing, improving but it is never for getting best results or to win friendly titles. Some clubs have pre-season period that makes their players exhausted in real season that is bad. It can cause exhaustion, injury and worse things. I think new players of Liverpool like Nunez are improving and better adapting to the club. It's good result for them before a season start.