Suggestion from a reddit user:
More keyboard shortcuts should be included in the app. Examples include being able to scroll via arrow/page up/down buttons, home button to go to Discover page, Ctrl + X shortcuts to go to subscriptions, downloads, publishes, Publish, wallet, etc.
The arrow keys up and down to navigate through options or menus
TAB key to switch main menus like wallet, libray, help etc... and also to select individual videos enter key to play the highlighted video by the tab key, space bar to pause and play, in-video control, left arrow key to forward 10 seconds and vice versa
As discussed in #2003
We should try to extract any additional shortcuts away from specific to components if possible and have a standard way to do this
Here are my suggestions:
Basic playback may have the easiest keystrokes assigned - just one key when possible - to make them easy to press and comfortable to use.
Video related extra features may have a Shift+ prefix.
Sidebar items may have the same prefix Shift+ to keep things easy to be accessed.
All the menu options may have a Ctrl+Shift+ prefix.
_* As there are many focus keyboard shortcuts, we would need to have a :focus css style to indicate that focus has been placed. Currently items do not change appearance when they get focused. This would be great for visual feedback and navigation._
These are just my suggestions. Feel free to discuss and recommend better ones.
Another suggestion from the community:
ALT+
Hotkey for video playback rate changes
Advance 1 Frame Forward or 1 Frame back. Use comma and period.
Some youtube player commands i use all the time, would love to see them in LBRY.
k -> Pause/Play
0 -> Go to beginning of video
On YouTube you can press Shift + ? to show a map of the keyboard shortcuts available:

I think these are a good starting point. I miss the Shift + ./> to increase playback rate in particular!
Most helpful comment
Here are my suggestions:
Basic playback may have the easiest keystrokes assigned - just one key when possible - to make them easy to press and comfortable to use.
_* Would a "find on page" feature be introduced in the future? If yes, then F3 and Ctrl+F may be assigned to that (for the app, browsers should take care of this automatically). If not, those can also be set to reach to search box as they are common search keyboard shortcuts._
Video related extra features may have a
Shift+prefix.Sidebar items may have the same prefix
Shift+to keep things easy to be accessed.All the menu options may have a
Ctrl+Shift+prefix._* As there are many focus keyboard shortcuts, we would need to have a
:focuscss style to indicate that focus has been placed. Currently items do not change appearance when they get focused. This would be great for visual feedback and navigation._These are just my suggestions. Feel free to discuss and recommend better ones.