What is the real world use of HBAR?

I'm curious to understand, what is the real-world application of HBAR? Could you elaborate on its practical usage and how it fits into the broader cryptocurrency and finance ecosystem? Is it primarily used for transactions, or does it serve other purposes as well? And how does it compare to other cryptocurrencies in terms of functionality and potential? I'm interested in gaining a deeper understanding of its utility and potential impact in the real world.