This is one reason why the whole thing is rigged to a large extent.
A few years ago, before the electric truck maker Rivin blew up, I felt strongly they would make it big but I could not buy any shares because there was no IPO. But Amazon/Bezos and other institutional investors were able to buy stock in the company.
You either sell A shares to investors who will drop 10’s of millions with minimal share dilution or you sell shares to the public and hope there is enough interest. A company like Rivin needed capital investment.