Obviously not him, but it is trivial to find out. His profile links to his current company, which has his real name, which Google links to https://taskulu.com/ unless he has another startup doing communications.
That doesn't look like a failed startup to me since it's still active and the poster has several startups under his belt seemingly being a "serial founder" so I was curious to know which of his startups was the one that he claims got killed by Teams to see if it holds water.