~Snip~
No, they definitely felt pressure and Guardiola almost cried or he did cry even. They had to put in a lot of effort to win that game against Manchester United and even though the penalty was questionable, those situations can happen in any game and when they are unlucky, it could even happen twice against them. Manchester United had a few dangerous attacks from the left wing and almost scored a goal in the last moment of the game as well. It is not as if Manchester City has won the game against Inter already. They will be the favorites and they know it, but this game is going to be hard.
Guardiola will instruct his players to give their best performance in the UCL Final, a small mistake that occurs on the field could make Inter punish them as well as make Manchester City dream of winning its first UCL title vanish. the victory over Manchester United in the FA Cup gave a morale boost to the Manchester City players to put pressure on Inter, Manchester City have the quality to dominate the match by relying on the tiki-taka style that Guardiola often uses.
This match was not easy for Manchester City because Inter also set a winning target. Even though Manchester City came to the final as the seeded team, they have to be careful with the squad that the opposing team has because Inter can punish them by taking advantage of mistakes made by Manchester City players.
I believe that the game against Manchester United in the FA Cup showed both the strength of Manchester City and especially their midfielders, but also the chance for the opponent to play attacks till the end. Inter does have a few guys on board who know how to dribble quickly and they have offenders that are in good form. One thing is for sure and that is that Manchester City will have more chances than Inter, but with efficiency Inter is able to shock Manchester City in that game the same way that Manchester United could have shocked them if the last chance hit the target.