Whenever I was offered to work through Remote.com or Deel it was forcing me to be employed in their local branch as an employee. Which made the whole thing more complicated (higher taxation than on the direct B2B contract, etc.) and not so lucrative anymore.
And it's not 100+ jobs in a single message, ofc. Every stack is sent separately. The number of 100+ is what you got when you filter out US-only / on-site positions.
Forgot about that one you've mentioned though. Another one to get rid of.
Have to admit, it's sometimes hard to check. One of the companies I was interviewing with, pretended to make sports software. Later on it was just pure gambling.