

There is no direct way to forward calls with KDE Connect or any other app, but there might be a solution if you would mainly receive calls at home.
If you’re willing to learn and configure, you could setup a PBX server with a Pi or an old machine by installing Asterisk and setting up your phone as a trunk line for it via Bluetooth (I’ll find the instructions soon)
Fedora. There’s a video of him explaining why he uses Fedora instead of Debian.
Edit: Link to Fedora’s pages and a Youtube video on why Linus does not use Debian (or debian-based distros)
https://fedoraproject.org/wiki/Is_Fedora_For_Me#Other_People_Using_Fedora
https://www.youtube.com/watch?v=qHGTs1NSB1s