It is of utmost importance to prevent an early goal from Manchester City. As we know, an early goal can significantly alter the players' mentality, even though the match has just begun. The pressure from Manchester City seems to be formidable, hence employing a counter-attack strategy might not be a bad choice for Inter to match their gameplay.
You are right that Inzaghi needs to warn his players to prevent goals from happening in the early minutes from Manchester City because it can have an impact on the mentality of the players.
Manchester City's playing style has always been pressing since the start of the match and that was Pep's strategy that was successfully implemented when they beat Real Madrid in the second leg of the semi-final at the Etihad Stadium.
What I expect from Inter is a high level of motivation fueled by the immense support from fans in Italy to end the drought of European titles for an Italian team. With such motivation, the spirit of Inter to play with dominance is likely to emerge right from the start of the match.
Inter Milan still has to play one more game in Serie A and Inzaghi must really pay attention to the condition of the players who will be installed in order to avoid injury considering that the match vs Torino will no longer have a big effect on the standings because the points earned are already safe in the top four.
The high motivation of the Inter Milan players against Manchester City is a valuable capital to be able to improve mentality, but Simone Inzaghi must be able to apply the philosophy of Italian football against Manhester City in the UEFA Champions League Final at the Ataturk Olympic Stadium so that it doesn't become like the final incident between Liverpool vs AC Milan on year 2005.