As for impact it depends. Slack is not that bad except that it is slow (for example switching teams was sluggish when I was using it). But when I run Slack, Sky

As for impact it depends. Slack is not that bad except that it is slow (for example switching teams was sluggish when I was using it). But when I run Slack, Skype, Insomnia and VS Code at the same time I definitely saw the impact. I had 16Gigs of ram but half of that was eaten by a VM all the time.