Hi, I'm John! I will help you with this.
Yes, you can use 3 screens independently in Windows 11, but it also depends on what your Dell Precision laptop and dock/ports support.
First, connect the monitors, then press Windows key + P and choose Extend.
Then go to Settings > System > Display. Click Identify, then drag the screens into the same physical order as your desk setup. Under Multiple displays, make sure each monitor is set to Extend desktop to this display, not Duplicate.
Please also check these:
- What exact Dell Precision model do you have?
- Are you trying to use the laptop screen plus 2 monitors, or 3 external monitors?
- How are the monitors connected: HDMI, USB-C, DisplayPort, or a docking station?