The PC did not fail. The codec marketplace did.
Windows can display HEIC if you install the right extensions — sometimes free HEIF, sometimes a $0.99 HEVC pack, sometimes a corporate image that blocks Store entirely. That is a lot of ceremony for a birthday photo. macOS Preview often opens HEIC on recent systems, then still fails in PowerPoint on a Windows colleague’s machine. The reliable interchange file is JPEG. This spoke is desktop friction: USB import from iPhone, AirDrop to a MacBook, email attachments that look empty in Explorer. Eligible singles use Edge in the browser (the Convertify4u path), not a plugin. Drag-and-drop is easier on a trackpad than on a phone. Folder-scale rolls still belong on Pro VPS. IT-locked laptops are the sleeper use case. If you cannot install codecs, you can still open Chrome and convert. You are not smuggling an installer. You are producing a JPEG Paint and Preview already understand.
Desktop habit that saves time
Convert before you drop files into Slack, Teams, or a shared drive that mixes Mac and Windows users.