I recently did a live stream, first time ever trying that feature out, used my mobile phone to do it. That video was 2 hours 46 mins long, and it's on the channel, search "live stream" if you want to have a look.
My initial plan was to just set up the camera and go chill at the sofa since I didn't count on anyone watching the live stream (it was impromptu, no advance notice to subs, etc). However there were people that started to watch it and I ended up having to respond to live comments (i.e. "what are you doing to the bike" "gimme a shout-out") so I had to be at the phone all the time.
Pretty interesting though, having that live comment/feedback session going on with people I'll probably not be able to meet in real life due to different geographical location. Got me to thinking about having live AMA (ask me anything) sessions in the future.. Like maybe once a month which will be planned in advance, for like 15 minutes where people can jump in the stream and shoot their questions live on the spot so I don't need to prepare in advance. The video will be saved by YT and I can share it on the channel for those that missed out. We'll see how it goes.