Though you can get creative and try connecting other kinds of devices to your monitor, there are a few things to keep in mind.

The last one is the most significant as a four-link DisplayPort 2.1 setup, using UHBR20 signalling, can transmit a 4K frame at 240 Hz, without needing to use DSC (Display Stream Compression).

You can take an old Android tablet and use it as a monitor, and it's surprisingly easy.