Opening the front cover of my fold phone invokes a shortcut

I'm using an OPPO Find N5, a foldable phone. It has a flip case where the front is protected and you can flip the cover open to see the front screen, and it's otherwise closed via a small magnet. When the phone is unfolded - I'm having a problem where if the front cover is opened up: - The find function on Google Chrome turns on. - When watching a YouTube video, it acts like I clicked on the video, showing the controls. Does anyone know how to disable this?