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

No

While the spelling, meaning, and conjugation of the infinitive verb vir are identical in both varieties, the typical usage of the word differs significantly. The differences lie in the grammatical structures that surround it, specifically regarding:

• Subject Agreement: In Brazil, the usage of você (third-person conjugation) is standard, whereas in Portugal, tu (second-person conjugation) is much more common in informal speech.
• Prepositions: When expressing destination, Brazilians frequently use the preposition para (e.g., vir para o Brasil), while Portuguese speakers more naturally use the preposition a (e.g., vir ao Brasil).
• Clitic Placement (Pronouns): In Brazil, object pronouns usually come before the verb (proclisis), such as vem me ajudar. In Portugal, they typically follow the verb (enclisis), such as vem ajudar-me.

Brazilian Portuguese Usage

1. Você pode vir aqui agora? (Can you come here now?)
2. Eu vim para o Brasil no ano passado. (I came to Brazil last year.)
3. Vem me ajudar com isso, por favor. (Come help me with this, please.)
4. A ideia veio na minha cabeça de repente. (The idea came to my head suddenly.)
5. De onde você vem? (Where do you come from?)

Continental Portuguese Usage

1. Tu podes vir aqui agora? (Can you come here now?)
2. Eu vim ao Brasil no ano passado. (I came to Brazil last year.)
3. Vem ajudar-me com isto, por favor. (Come help me with this, please.)
4. A ideia veio-me à cabeça de repente. (The idea came to my head suddenly.)
5. De onde tu vens? (Where do you come from?)