All crypto trends will pass and money will always flow to Bitcoin and the top altcoins. I have seen that through the bull market times from ICO, IEO, IDO to DEFI.
Holding Bitcoin and the top altcoin is an arduous process and we need to be consistent with our stance to become rich.
And always almost in the same majority of funds,,, to make Bitcoin dominance go back up towards 60-70% again. I think people in crypto who saw the last rally should know this,,, and those who have not will learn this.
Like you said IDO and DEFI is just ICO days. People have not seen it yet.