Uptodown is a popular third-party download site that hosts older Windows installers and APKs. It provides version histories for many apps, making it easy to pick a prior release.
That said, for offline gaming or private server use, old versions are perfectly safe. Msi App Player Old Version Download Uptodown
is a rebranded version of BlueStacks , co-developed with MSI to optimize Android gaming on MSI hardware (though it works on any PC). It allows running mobile games (e.g., Genshin Impact, Call of Duty: Mobile) on Windows. Uptodown is a popular third-party download site that