From the looks, that’s some shortcuts of Plex Media Player. If you’re looking for parity, your best shot will be Plex HTPC.
btw… no need to chase after some potentially outdated cheat sheets if you can use the original list from Plex’ support articles → Controlling Plex Media Player.
You can find the list of supported keyboard shortcuts for Plex for Mac/Windows inside the app by clicking on your account icon and selecting the Keyboard shortcuts option.
