I'm pretty sure that in this match Chelsea have a better chance, they will play at home and we can see in the previous few matches they managed to hold a draw with a team like Manchester City when playing at home and that's exactly what you said. So maybe I will be in the Chelsea camp again this time, but let's just see the results later.
Chelsea played a very good game; they dominated the match completely, they proved to be the best team in the match, their players showed quality, and they won the match at the end, which is exactly as expected by so many people, including Chelsea fans, because it will not be good if Chelsea is eliminated in the FA Cup. Chelsea needs to look serious in the FA Cup; they need to win the FA Cup to do the same thing as Manchester United did last season so that their fans will have relief from all the players they signed for huge amounts of money, so that the team management will feel relief and the team will be able to sign more players by avoiding financial fair play.
chelsea's opponents in the FA cup are only Preston championship division teams, this means division 1 in the English league under the premier league. so it is very natural that they won by a landslide and dominated. in addition to the unbalanced opponents, the chelsea squad also played at its own Stamford Bridge. which of course is supported by many of its supporters who watch directly at the stadium adding to its fighting spirit so it is very natural to win by a landslide.