Are work at home jobs posted on job sites (like LinkedIn) usually scams?

I was browsing jobs on LinkedIn and came across one that says it's a "work from home" job doing data entry.

I tried doing a search on Google for information about the web site that they list, but I couldn't find anything that says how legitimate they are.

I'm guessing it's not allowed to post a link to the job listing here which is why I'm not doing so, but is it safe to say that most job listings like this one are scams?

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