Hi Im a new User and kindly want to ask what means the number in clamps in the App title Show in the window?
Hi and welcome. I stopped using Skype after Microsoft took it over. It could indicate any number of things:
a. You have more than one instance of Skype running;
b. You have 4 unread messages;
c. You have 4 contacts on line.
Look in the app for more information.
Seriously you would be better off using https://meet.jit.si than Skype.
Note: Skype will be retired on May 5, 2025. It is being let go and (Microsoft) users expected to use Teams instead with same credentials.
I assume your reference to Skype may however have been used as an example of "[4]" indication.
For clarity mainly personal versions of Skype:
"...However, the company is not retiring all versions of Skype. Support for on-premises deployments of Skype for Business Server and Lync Server 2013 remains unaffected by this."
What makes me laugh is when I was using Teams for Linux during lockdown, when running processes in Devuan it was identified as Skype for Business. I had such a poor experience with Teams for Linux I insisted work use https://meet.jit.si. It was so good, colleague at work forgot to end his connection for 3 days.
The title shown in the windows is typically controlled by the program itself, so this really should be asked to their support directly. Keep in mind what @zabadabadoo said about Skype being retired soon; I can also vouch for Jitsi Meet as an excellent alternative.