Slack dropped the ball earlier than that on audio/video. They acquired Screenhero in 2015 and did nothing of substance with it. Also, the lack of any real meeting features means that Zoom or Teams always has to be in the picture.
Screenhero was the best screensharing software I've used to this day.
If anyone here knows the inside story of what went down with that acquisition, please share because I was expecting such great things when I heard Slack got them and then ... just nothing.
Was it a tech integration problem? A key team member leaving? Like what happened?
...but that still doesn't explain why Slack otherwise seems frozen-in-time: none of the significant end-user usability and quality-of-life issues I've had with Slack since I started using it in 2016 have been addressed (e.g. we can't right-click a message to get its context-menu: you still have to hunt for that awkwardly-placed "..." menu button).
See https://slack.com/release-notes/windows - this is their changelist for their Windows release and most of the releases since 2020 are described as "tweaks", was "tinkered with", or is "tuned-up" which, or "minor security updates" - which, as any npm user will tell you just means they ran `npm update` and not much else (well, besides the bare minimum of automated testing).
> In 2013, I co-founded Screenhero, an app that enabled remote pair programming and made developer collaboration over the internet “better than being in the same room” (to quote our old slogan).