After installing skype it will always start whenever I login. I'd rather it didn't do that.
How do I stop Skype from automatically starting?
For Skype for Business on Mac OS Catalina:
This worked for me.. first list all login items:
$ osascript -e 'tell application "System Events" to get the name of every login item'
Then delete skype for business
$ osascript -e 'tell application "System Events" to delete login item "Skype for Business"'
You may need to run several times if there were repeated items.