You can test your webcam online or using programs that come with Windows 10 or your Mac. You don't have to wait for a video call to find out there's a problem with your webcam - test it ahead of time.
My brand-new laptop's 4K webcam could only do 1440p. Here's why Windows sometimes holds back the full potential of a webcam.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results