Would you like to stream on twitch, is it suitable for this or do you have any suggestions?
So I think they can be used, but for the price there are definitely better choices
In any case. If it is only to serve as a webcam for the webcam overlay, that's overkill. If it's supposed to be used for full screen recording of you, that's pretty good too.
Yes, it is well suited.
Bright and with a 1-inch sensor, the camera can also cope with slightly poorer lighting conditions, but it is still important that you also spend money on good lighting, which you should plan in your budget.
Take a Logitech webcam.