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

Yes

The word "brinquedo" is identical in meaning, spelling, and grammatical function in both Brazilian and Continental Portuguese. The only difference is pronunciation. In Brazilian Portuguese, the vowels are typically more open and the rhythm is more melodic (syllable-timed). In Continental Portuguese, vowels are often more closed or even reduced/suppressed (stress-timed), making the word sound more "clipped" or "staccato."

Brazilian Portuguese Examples

1. O menino está brincando com seu brinquedo favorito. (The boy is playing with his favorite toy.)
2. Eu comprei um brinquedo novo para o meu sobrinho. (I bought a new toy for my nephew.)
3. Esse brinquedo é muito barulhento! (This toy is very noisy!)
4. Guarde todos os seus brinquedos no baú. (Put all your toys in the chest.)
5. As crianças estão muito felizes com os brinquedos de Natal. (The children are very happy with the Christmas toys.)

Continental Portuguese Examples

1. O rapaz está a brincar com o seu brinquedo preferido. (The boy is playing with his favorite toy.)
2. Comprei um brinquedo novo para o meu sobrinho. (I bought a new toy for my nephew.)
3. Este brinquedo é muito barulhento! (This toy is very noisy!)
4. Guarda todos os teus brinquedos no baú. (Put all your toys in the chest.)
5. As crianças estão contentes com os brinquedos de Natal. (The children are happy with the Christmas toys.)