Webtorrent Desktop is no longer working on Manjaro because of an updated package issue, so I search for other solutions to be able to stream torrents. I found vlc-bittorrent in the AUR repository, and also found another one I grab at the same time, vlc-pause-click-plugin, which makes the video clickable to pause/play.
Now I can open torrents files directly in VLC, it will look for the biggest file in theory and play it. Not optimal for torrents with multiple video files in it as there is no output or control of the torrent side. It just plays the video file it finds in the torrent.
The pause-click plugin needs to be enabled in the settings Interface->Control Interface and Video->Filters
Also, sometimes VLC freezes and continue to play audio but the video and the whole computer is frozen, so for a test I changed the video output setting to OpenGL instead of VDPAU to see if it improves the situation.