I expect them to be not very prepared against Barcelona as well. But Barcelona are in a pretty solid condition now. No matter where this match is played, I think Barcelona would defeat them anyway. Therefore Barcelona win @1.82 is pretty attracting to bet on.
Your assessment of Inter Milan is accurate, however you can't be so certain that Barcelona will beat them in the champions league despite the fact that they lost in their first game following the break. Teams put more effort in the Champions League than they do in league matches because of how beneficial it is to advance.
Barcelona's match against Inter Milan tomorrow won't be easy for them to win, despite the fact that they are currently in good form. It will undoubtedly be a tough game for them to win. Inter Milan will definitely strengthen their defense to avoid conceding goals. Let’s watch out and see.