Hi! I've noticed that the stable channel for the Skype snap is more than half a year outdated:
$ snap info skype
summary: One Skype for all your devices. New features. New look. All Skype.
stable: 18.104.22.168 2018-11-13 (66) 154MB classic
insider/stable: 22.214.171.124 2019-04-18 (81) 171MB classic
installed: 126.96.36.199 (66) 154MB classic
And I was guessing when the new version (188.8.131.52 as of today: https://support.skype.com/en/faq/FA34778/release-notes-for-skype-for-windows-mac-linux-and-web) will be available and when will the stable channel be updated.