In general, the international airport
Rio de Janeiro - Galean
is quite comfortable and modern.
I liked it, it was in February 2020.
On the territory there are:
cafes, restaurants, souvenir shops ...
(not cheap) it is better to buy in advance in the city;) Before departure, you can visit Duty free, free wi-fi and get from the airport to Copacabana in about an hour by taxi, as well as buses.
Brazilians are very friendly and helpful, they will always prompt and help👍