One of my favourite add-ons of kodi I’d love to see in plex is “unpause jumpback”.
Basically it will rewind x amount of seconds (you can configure it) when the video is unpaused.
I found it really useful when I would get a phone call and have something paused for say 15 min or had to go do something, when I pressed play I would rewatch the last ten seconds and remember what was happening when I paused.
The kodi version is configurable so you can say how long a video needs to be paused before it will rewind and how far back to rewind.
It would be good if this was also added to the resume feature so if I started a movie before bed the next day I would see the last few seconds again.