Yes, you can connect your Nintendo Switch to a PC without a capture card. All you need is a USB-C cable and the appropriate drivers installed on your computer. Once you have everything set up, you'll be able to play your favorite Switch games right on your PC. Here's what you need to know:
First, make sure that your PC has all the necessary drivers installed for the Switch. You can find these drivers on Nintendo's website. Next, connect your Switch to your PC using a USB-C cable. Once it's connected, open up the NVIDIA Control Panel on your computer. Under Manage 3D settings, select Global Settings. Finally, under Preferred graphics processor, select High-performance NVIDIA processor. Save your changes and restart your computer. That's it! Now you're ready to enjoy all your favorite Switch games on your PC.