Where is MetaMask available?

As a keen observer of the cryptocurrency and finance world, I'm curious about the accessibility of MetaMask. Could you elaborate on where MetaMask is available? Is it accessible globally, or are there specific regions or platforms where it's more readily used? Additionally, are there any requirements or limitations for accessing MetaMask, such as specific device compatibility or software versions? Understanding its availability and accessibility is crucial for anyone considering its integration into their digital wallet or transactional needs.