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

Yes

The word "angolano" is identical in meaning, spelling, and grammatical function in both Brazilian and Continental Portuguese. The only difference lies in pronunciation.

In Brazilian Portuguese, the vowels are generally more "open" and the rhythm is more melodic (syllable-timed). In Continental Portuguese, unstressed vowels—especially the final "o"—are much more reduced or "swallowed," making the word sound shorter and more clipped.

Brazilian Portuguese Examples

1. Ele é um professor angolano. (He is an Angolan professor.)
2. Eu gosto muito de música angolana. (I like Angolan music a lot.)
3. O governo angolano assinou o acordo. (The Angolan government signed the agreement.)
4. Ela tem um sotaque angolano muito legal. (She has a very cool Angolan accent.)
5. Você conhece algum artista angolano? (Do you know any Angolan artist?)

Continental Portuguese Examples

1. Ele é um professor angolano. (He is an Angolan professor.)
2. Eu adoro música angolana. (I love Angolan music.)
3. O governo angolano assinou o acordo. (The Angolan government signed the agreement.)
4. Ela tem um sotaque angolano muito giro. (She has a very nice Angolan accent.)
5. Conheces algum artista angolano? (Do you know any Angolan artist?)