I have almost another 10 months left on my Skype subscription and according to the Skype statement below, I can still use their web portal to make calls online from my desktop computer.
This is from Skype site:
“Existing calling and Skype Number subscriptions will continue to automatically renew until April 3, 2025. After May 2025, the Skype Dial Pad will be available to remaining paid users from the Skype web portal and within Teams Free. To transfer your Skype Number, contact your new carrier or learn more here.”
~O