Mac M1 App
Bring the iOS Tado app to the Mac AppStore to use the features in which HomeKit doesn't support (Ie. Override Timer, energy reports, timer settings).
When we had access to run these apps pre MacOS 14.2 or 14.3 tado was one of the best apps to use via MacOS for M1 devices which saved me from hunting down my iOS device. It just worked and really well too.
Fingers crossed there are no security issues, it's probably a flick of a switch for Tado to enable when releasing their app to send it to the Mac AppStore. So no new App required (unless Tado wants to build one specifically for the desktop environment).