Android : An Android file management app, such as My Files, is required to access internal storage. You may also manage your files and folders by connecting your phone to a computer. The majority of the time, whatever you download will end up in the Downloads folder. However, the location may fluctuate depending on the app.
Windows : Downloaded files are typically saved in the download folder of your browser. You may edit and manually pick the destination folder for your files in settings.
iOS (iPhone, iPad or, iPod) : Users of iPhones running iOS 11 or later have more choice over where downloaded files are saved. Previously, downloads were sent to a specific location based on the file type. Downloads, on the other hand, may be accessed through the Files app with iOS 11 and later.
iOS (macOS) : You can simply access the Downloads folder from the Finder's sidebar. If it isn't shown under Favorites, go to Finder > Preferences and enable it on the Sidebar tab. You may also access to it fast by going to Go > Downloads (Option+Command+L).