they wont work on android though. thats the main reason i started using more TUIs myself. i needed to be able to run a bunch of python scripts on linux, windows and android/termux. or if any of the linux phones ever matures, or sailfish, then the same scripts will run thereas well, probably without any modifications needed
KDE has a framework based on Qt's QML that works on Android. It is called Kirigami. They have written apps and even a complete Plasma Mobile using it. The apps work both on Android and Linux.
Mobile has significant paradigm changes that makes using both terminals and traditional GUIs harder anyway though. I do expect the need for completely different cross-platform libraries for mobile UIs.