Yes, however the case of IEOs may be on the various means of token sales, I think that launchpad (Initial exchange offerings) remains the best options. First, the issue of too many scams activities associated with ICOs days has been drastically reduced.
I have participated on both the ICOs and IEOs, obviously, IEOs has maintained some clearity, purposeful and successful projects launchpads on many CEX exchanges till date.
To be convinced of these facts, search on the successful launchpads carried out on Binance, Bybit, Kucoin exchanges to see their performances.