https://download.qt.io/archive/qt/5.15/5.15.2/single/ Look for qt-everywhere-src-5.15.2.tar.xz .
https://download.qt.io/archive/qt/5.15/5.15.2/qt-opensource-windows-x86-5.15.2.exe Note: The same filename contains both MinGW and MSVC options during installation. qt5.15 download
md5sum qt-opensource-linux-x64-5.15.2.run Compare the output with the contents of the .md5 file. https://download
sudo apt install qt5-default qtbase5-dev qtbase5-dev-tools qt5.15 download
git clone https://github.com/Microsoft/vcpkg cd vcpkg .\bootstrap-vcpkg.bat .\vcpkg install qt5-base:x64-windows
Verify the tag signature:
Ubuntu 20.04 LTS has Qt 5.15.2 in its official repos: