While there are several solutions to use a tablet as a second display for your PC, most are paid, and many of the free ones have limitations and don’t provide the best user experience.

Sidecar in macOS turns your iPad into a second display, but it's limited to certain Macs and iPads. Thankfully, a few ...

It's called spacedesk, and with it, I was able to quickly and easily use my tablet or my smartphone as a second monitor for my PC.