And it works great on Ubuntu 19.04 "disco dingo". From what we've tested, Netflix works like a charm, so does YouTube. ElectronPlayer also has a picture-in-picture mode that let it run above desktop and full screen applications.
For me, this is great because I can free-up tabs on my Firefox window which are almost never clutter-free.
OR
Use the command below to install ElectronPlayer directly from Snapstore. Open Terminal (Ctrl+Alt+t) and copy:
sudo snap install electronplayer
Press ENTER and give password when asked.
After the process is complete, search for ElectronPlayer in you App list. Sign in to your favorite video streaming services and you are good to go. Let us know your feedback in the comments.