Are lack of /exctra commas are considered as mistakes in tests for English as a second language?

Nonverbis

Member
Joined
Jun 4, 2021
Member Type
Student or Learner
Native Language
Russian
Home Country
Russian Federation
Current Location
Russian Federation
Could you tell me whether mistakes in commas lower the score in the written section of exams (like IELTS, TOEFL or the like)?
 
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