What is a good FREE android webcam app for Skype video calls on my PC?

The integrated cam of my PC doesn’t work anymore, and due to quarantine I’m unable to go to a computer store to buy a webcam.
I don’t trust online stores for electronics/computer stuff.
So until businesses open, I want to connect my android phone as webcam to my PC to use for Skype study sessions, as the phone Skype app really lags.
I tried a few apps from the playstore: “iv cam”, “droidcam” and “ip cam” but they all lag and finally crash during video call. They do have pro versions but according to reviews they too either lag and crash, or people are too afraid to pay because of the crappy free demo versions.
Does anyone know of a free app on the playstore that actually works?