A search for "Windows 13" often leads to fan-made concepts, "idea wikis," or simulation projects, as Microsoft has not yet released or officially announced a version by that name.
claiming to be Windows 13.
Yes, most browser-based simulators work on Android and iOS via Chrome or Safari. windows 13 simulator link
If you're interested in testing upcoming Windows features, join the Windows Insider Program for official previews of Windows 11 (and possibly future versions). For a safe, fun simulation, try Windows 93 (a classic web parody) at windows93.net . A search for "Windows 13" often leads to