When you select text on Android and click share, you can choose to send it to kdeconnect. What happens when you receive that text on at least Linux is that a file is created in your home directory and the shared text is stored there. What is the rational behind this? For me it seems more intuitive that the text is directly copied to your clipboard. Additionally, the text should be available in some UI of kde connect. Copying to clipboard is a minor change. I implemented it on my fork: https://github.com/fabian-thomas/kdeconnect Feel free to cherry pick the commit. On Windows I'm not sure if this share feature even works. I couldn't find the shared text/files.
This was done.