It is very possible to make good profits from ICOs even in 2021, however a lot of research has to be done in order to invest in cryptocurrency successfully because the cryptocurrency market is so unpredictable and sometimes the most promising looking project turn out to be scam projects. Always do your own research into the team, token metrics and most importantly the target market for such cryptocurrency
personally i am prefer invest in IDO or IEO, in ICO honestly i am still affraid if send my money to developers team directlY. As we know many ICO project run with investors money, and its should be best experience for us . Hype in IDO also better than ICO, no one talking about ICO now and i think it is over now.