These projects which were announced by binance for staking launchpool, are successful. That's why people staking millions of dollar nowadays and so you'll get a little amount from launchpool. By staking 4/5 bnb, you'll get 6-8$ worh altcoins even pump 10x(example of manta). Recently xai, manta launchpools are over. I got some cents from their launchpool for xai lol. Usdt staking not much profitable, you'll get 8x less comparing to bnb. So people choice bnb but volatility matters when your staking bnb. Finally it's not that good at all
I don't think there are many people who stake millions of dollars there, only a few people, the rest is a combination of many people.
and also some exchanges impose limits on the maximum tokens they will get.