Xcode 12.1 it's not available in the Downloads section of Apple Developer, there's only the GM build. Currently, it points out to the App Store link, which for me it's ok.
But when I start to download XCode from the App Store, it starts at full speed for some seconds and then drops to a few byte/s. Pausing and restarting didn't help, and I'm stuck on a 2-days download by now. Every other app from the store downloads well.
Please, fix the download stream from the App Store, give me an hint on how to speed up the download time, or give us a xip to download from the Developer site.