Guardiola has a vision and mission for the treble winner at the moment they are facing Manchester United and winning in the early minutes, I think if they manage to win the FA of course they will target the UCL later against Intermilan, Manchester city really plays more pressing too seriously so it seems nothing is can stop them.
Guardiola made a good strategy to face every opponent that is in their way to get the treble winner this season, I don't think Intermilan can be seeded against Manchester City even though the Odds for Intermilan are very high and tempting because they have a chance to win because they are playing in the final.
I also think, that if nothing completely crazy and unforeseen is happening in the final of the Champions League, then Manchester City should not have to many problems to finally win this competition after being one of the best teams, if not the best team in the world of football for at least 3 or 4 years now. That being said, it is a final and only one game and there everything is possible. A lucky goal for Inter Milan after a corner or a freekick or something and then the whole game changes.
Also i think that Guardiola sometimes has the tendency to "overcoach" and overcomplicate things in very important games. I hope he just lets his team play as usual, then everything should be fine.
Man city is definitely likely to win the final match. Because Inter is not yet strong enough that they can beat Mam city in the final match. In other normal matches, maybe a team like Inter can beat them because of man city's unconscious play. However, Man city will not play unconsciously in the final match, they must actively play the match, so it does not seem that Inter Milan can win the final match of the Champions League. However, Inter is offering high odds, anyone can get Hughes if they can be bet and win here, but the chances are very low.