No it does not. I used skype for work for hours a day, until Microsoft bought them. They put out a terrible Linux version which was so bad I had to downgrade.
I then refused to upgrade until I got daily notifications that my old version would be disabled from connecting.
I upgraded, as forced, and that was the last time I was able to make calls or do screen sharing.
Chat still works.
It worked before Microsoft, it did not work after Microsoft.
I haven't been on Windoze since I don't know how long. And the Mac Client is superb. Linux client, absolute desaster, indeed.
But still, this has absolutely nothing to do with Bill.