B2 is widely considered the minimum level needed to work or study professionally in a Spanish-speaking country. Independence:
Self-learning language guide: from 0 to B2 : r/languagelearning aula internacional b2
Think of B1 as "I can travel and talk about my hobbies." B2 is "I can defend my opinion, understand a film without subtitles, and write a formal complaint email." B2 is widely considered the minimum level needed