Can You Use A Laptop As A Monitor For Another Computer? Yes, And Here's How

If you have an extra laptop lying around, or want to use it alongside your desktop, here's how to connect and project your ...
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Yes, You Can Use Your iPad As a Second Monitor Without Sidecar

Sometimes you just need a quick and easy way to connect a second monitor, without dealing with a whole new display. Apple's Sidecar feature lets you turn your iPad into a second display for the Mac, ...
Android Authority

Samsung DeX finally gets multi-monitor support on the Galaxy Tab S11

Samsung is rolling out multi-monitor support in Samsung DeX, starting with the Galaxy Tab S11 and One UI 8. Extended Mode allows dragging apps and files between your monitor and tablet display.