@geraldt And As my opera did is just playing the video instead of downloading it. If you wanna download just click save as

@geraldt Well If it works on chrome then it should work on opera too cuz they both are based on chromium

Right-click on the preview video download and then click on save as. worked for me

My Laptop is not lagging but opera is. After I played a Friday night funkin mod online, It's lagging now only in the browser. FIx pls. I tried to quit but not working here is my mac specs.

MacBook Pro (Retina, 15-inch, Mid 2015)
Processor: 2.2 GHz Intel Core i7
Memory: 16 GB 1600 MHz DDR3
Graphics: Intel Iris Pro 1536 MB