Yes, everyone is happy with the approval of the long-awaited Bitcoin ETFs. I expect that there will be a very large demand for these funds in the coming period. According to what I read in Cointelegraph, the trading volume for Spot Bitcoin ETFs reached about 4.5 billion dollars on the first day, although some of them have not yet started.
The problem I see with these Spot Bitcoin ETFs is that they may affect the liquidity available in the spot trading market for Bitcoin. If this large liquidity entered the spot trading market, we would see the price of Bitcoin soar to large numbers.