If you’re playing competitive FPS games then Wayland still isn’t there, use X11 instead. Outside of it, I’d say it’s worth a shot, it goes especially well with FreeSync monitors.
Your experience will vary from your GPU vendor too. I have an AMD card so Wayland is a smooth experience for me, if you’re on Nvidia then you will most likely face issues.
I’ve noticed a bug where in GPU bound scenarios entire desktop is lagging. This issue happens for me on Wayland but not X11. I don’t know what’s causing it, could be my graphics card running out of its 4 GB of VRAM.
TL;DR give it a try, you can easily switch between X11 and Wayland.
Most likely the website you pirated your movies from stored cookies in your browser which then were picked up by Google/YouTube.