Learn Portuguese (Portugal): Vivemos na era digital.

In European Portuguese, only "-ar" verbs get an acute accent in the first-person plural past tense (like falamos for present vs. falámos for past). For "-er" verbs like viver and "-ir" verbs, the present and past forms are identical (vivemos). You rely entirely on context to know this means "we live" rather than "we lived".

English uses "age" here, but Portuguese uses era. Could we say idade digital instead?

No, it sounds unnatural. While idade translates to "age" for human age and certain major historical periods (like Idade Média for Middle Ages), era is strongly preferred for modern, technology-driven shifts like the era digital (digital age) or era espacial (space age).

Could the adjective digital be placed before the noun, as in na digital era?

No, placing it before the noun would be incorrect here. Digital is a classifying adjective, meaning it puts the noun into a specific factual category rather than expressing a subjective opinion. Classifying adjectives must always follow the noun in Portuguese.