Acer laptop webcam really blurry and dark

it's mostly the camera, the Aspire ones are 720p with a tiny sensor. two things help a lot though: light in front of you, not a window behind you, and in the Windows Camera app settings turn off the auto exposure or HDR and set brightness by hand so it stops hunting. Teams and Zoom both have an adjust for low light option in their video settings that's worth switching on. past that it's a 20 dollar usb webcam, which will still be a big step up.