Can someone please tell me what problem does Ethereum solves?

Due to the huge number of scams and other forms of noise in this industry, I fail to find the answer to this seemingly simple question. I thought we could use Ethereum as a platform for creating something like a decentralized Uber (as suggested by Andreas Antonopolous). However, that was many years ago, and AFAIK, nobody made anything like that yet. I only see Ethereum being used as a platform for creating virtual tokens, but I don't find that useful at all for anything but making rug pulls :/

So can someone please state clearly what problem does Ethereum solves?