There are a few scam downloads for Windows 11 installation media, so best avoided. However, techies will want to install the new OS to test it and the best way to do this, the only way currently according to Microsoft, is to install Windows 10 and then join the Windows Insider Program.
I have tried using a Virtual PC and it isn’t very useful, so I got another SSD for my main PC, installed Win 10 on it and joined the program.
I recently had a laptop with Windows 10 that had been working on WiFi but after rebooting the router it would no longer show the Service Set Identifier (SSID) in the list of available WiFi networks. Other devices could see it, all except the laptop and the laptop could see some other WiFi networks in the vicinity.