Is the word desconfortáveis the same in Brazilian and European Portuguese?

Yes

The spelling, meaning, and grammatical function of "desconfortáveis" are identical in both Brazilian and Continental Portuguese. The difference lies solely in pronunciation:

• Brazilian Portuguese: The vowels are more open and clearly articulated. Unstressed vowels (such as the "e" in the final syllable) are pronounced distinctly, giving the word a more melodic, rhythmic flow.
• Continental Portuguese: The pronunciation involves significant vowel reduction. Unstressed vowels are often "swallowed" or reduced to a very short, neutral sound, making the word sound more clipped and consonant-heavy.

Brazilian Portuguese usage:

1. Esses sapatos novos estão muito desconfortáveis. (These new shoes are very uncomfortable.)
2. Aqueles silêncios ficaram muito desconfortáveis. (Those silences became very uncomfortable.)
3. As poltronas do cinema são super desconfortáveis. (The cinema seats are super uncomfortable.)
4. Aquelas situações foram bem desconfortáveis para todo mundo. (Those situations were very uncomfortable for everyone.)
5. Senti que as perguntas estavam sendo desconfortáveis. (I felt that the questions were being uncomfortable.)

Continental Portuguese usage:

1. Estes sapatos novos são muito desconfortáveis. (These new shoes are very uncomfortable.)
2. Houve uns silêncios embaraçosos durante o jantar. (There were some awkward silences during dinner.)
3. As cadeiras daquela sala são bastante desconfortáveis. (The chairs in that room are quite uncomfortable.)
4. Passaram por momentos muito desagradáveis na reunião. (They went through very unpleasant moments in the meeting.)
5. As perguntas eram um bocado embaraçosas para ela. (The questions were a bit awkward for her.)