I think I'm one of the few portuguese users in this forum that actually likes "Fome de Viagem", but regarding Inês chances of winning I think they are very small.
From a judges perspective I can see it scoring high.
The lyrics are very original and interesting by the virtue of rhyming words in different languages, like "fun" in english with "pan"(bread) in spanish.
The melody is inspired by the brazilian music genre called
choro/chorinho and most musicians and artists in Portugal usually are fans of more old traditional brazilian music like choro or bossa nova.(also if you ever played Sid Meyer's Civilization VI you may have noticed some similarities with
Brazil's theme song)
Inês voice is great and the fact that she can sing it perfectly like in the studio version should be admired as her song isn't easy to sing, having a lot of key changes.
From a public perspective I think "Fome de Viagem" is a lower common denominator type song, people will like it because it is fun and it has an intergenerational appeal for both old and young, with it working better with among an older public since the song and Inês's voice in particular is very similar to the
old musicals produced in Portugal in the early XX century.
But, with that being said, I think it will only means that she will have a better result than people expected when the songs were first released, maybe getting a top 5, but, if for some reason she wins the jury vote it is virtually impossible that she can score higher than Aurea, Syro, FF, Maro or Quatro e Meia in the televote, she is an unknown singer and there are artists that only due to name recognition can win the televote.