At the start of this month I spent a very enjoyable Saturday afternoon watching EmacsConf 2019. If you missed it, or even if you didn't, you might like to know that the announcement has gone out that almost all of the videos are now available for watching.
While I mean nothing negative about any other video, I think the two that stand out the most for me, in terms of things that grabbed my interest, were How a Completely Blind Manager/Dev Uses Emacs Every Day and Emacs as my Go To Script Language.
I seem to recall that both those talks were hit with technical issues (many talks on the day were -- part of the enjoyment for me was how the whole conference was an experiment in using Free Software to host the whole thing), but they're well worth a watch despite this.
If you have any sort of interest in Emacs I'd highly recommend dipping into the whole collection.
I really hope there's going to be a 2020 EmacsConf.