It is a bit more nuanced. I bought a 3 month old "side project" which had like 10 customers at the time and I have bootstrapped it into a low 7 figure business with a totally new tech and lots of pivots/business changes. I call myself the founder for all practical purposes. Everything about this business was setup by me and the team I built from the ground up except the initial market validation which btw we have changed anyway since the customer profile is now different.