I'm running into the same issue. We have a profile in place to restrict
iCloud settings and within the "Restrictions" panel I have External
Drives unchecked. Now I have another profile specifically set for Block
USB (external drives) too that can be ...
Just FYI -- I've noticed that on many of our machines for some reason
the VPP version of the Slack.app lost it's screen recording ability.
Specifically on Monterey and Ventura.
Installomator here too... but we still get that pesty HelpTooler popup.
Only workaround at the moment is to have the user re-install via the SS
and it makes it go away. Mind you I have a CP loaded to allow
auto-updates and it still gets jammed.
I personally use "installomator.sh" to install slack. It installs the
web version. I have a configuration profile setup for auto-updates too
and it suppresses the need for admin credentials on every update. Just
restart Slack and done.