I dont know anything about faucets other than using them. But not all faucets are the same. The mechanism, the design tolerances, the materials, the granularity, smoothness and its longevity can vary by a lot.
Grohe used to be amazing, i am not so sure how things are nowadays. I've heard enshitification has hit them. If you own a house, a faucet is something that you will use for decades, even centuries(your descendants). Something that you will interact many times a day. It is worth spending a bit more money to get something good.