Click on the Download option at the top, and OneDrive will now download all files to the PC at once. It worked just fine for me on my Windows 11 PC and here is the screenshot.

Any files or folders you download from OneDrive will be available in your computer's Downloads folder or whatever location your web browser stores downloaded files.

You can convert HEIC files to the PNG format using a few different methods. Here's how to convert HEIC to PNG on an iPhone, Mac, or Windows PC.