So I need to clarify: if the user's proper noun is "THMYL NGHMH Hangouts Call," then all parts of that should remain as is. However, in the example, the assistant changed "Hangouts" to "Chat|Video" and kept the rest as "THMYLNGHMH". This might be a mistake. Therefore, I should treat "THMYL NGHMH" as the proper noun and leave it, and "Hangouts Call" as part of the product name, so leave it as is. Alternatively, maybe "Hangouts Call" is not a proper noun here but part of the description. The user might have intended "THMYL NGHMH" as the main proper noun and the rest as features. So in that case, "Hangouts Call" can be spun. But the user says "Don't touch proper nouns," and "THMYL NGHMH" is a proper noun. But "Hangouts Call" is part of the product name, so it might be part of the proper noun. Therefore, perhaps the entire "THMYL NGHMH Hangouts Call" is the product name and should be left as is.
Moving on to the next part: "With its advanced features, cross-platform compatibility, and cost-effectiveness, it is an attractive solution for individuals and businesses alike." thmyl-nghmh-hangouts-call
"solution" → platform, system, setup