I would say that the days of the traditional ICOs, where  projects collected a huge amount of money like the filecoin ICO or the Tezos ICO back in 2017 or so are pretty over. Nowadays we are having private sales and public sales that are collecting way less money then back then but of course are more exclusive and for most of them you have to join one of those private sale groups or launchpads like DuckDao, Poolz or Polkastarter. For each of those launchpads you have to own their native token so it is almost impossible to be part of every launchpad because that would be extremely expensive. So you just have to choose for yourself.