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

No.

While the spelling and grammatical conjugation are identical in both dialects, the answer is No because of differences in typical usage and pronunciation. In Brazilian Portuguese, "reclamar" is the standard, everyday verb used to express dissatisfaction or to complain about a situation. In Continental Portuguese, while "reclamar" is used (often in more formal contexts or when "claiming" a right), the reflexive verb "queixar-se" is much more natural and frequent for the simple act of complaining. Additionally, the pronunciation differs significantly: Brazilians typically use more open vowels, whereas Portuguese speakers use much more closed, attenuated vowels.

Brazilian Portuguese Examples

1. Ele reclamou do calor intenso. (He complained about the intense heat.)
2. O aluno reclamou da nota baixa. (The student complained about the low grade.)
3. Ela reclamou que o ônibus estava atrasado. (She complained that the bus was late.)
4. O vizinho reclamou do barulho da festa. (The neighbor complained about the noise from the party.)
5. O cliente reclamou do atraso na entrega. (The customer complained about the delay in delivery.)

Continental Portuguese Examples

1. Ele queixou-se do calor intenso. (He complained about the intense heat.)
2. O aluno queixou-se da nota baixa. (The student complained about the low grade.)
3. Ela queixou-se de que o autocarro estava atrasado. (She complained that the bus was late.)
4. O vizinho queixou-se do barulho da festa. (The neighbor complained about the noise from the party.)
5. O cliente queixou-se do atraso na entrega. (The customer complained about the delay in delivery.)