I use my mobile (Android Companion app) for 90% of my HA monitoring and for quick adjustments.
But for some reason VSC is basically unusable. The code area does not adjust properly to keyboard being opened or basically anything else.
I have yet to successfully edit any code in VSC on my mobile without cursing 
That’s a question for the developers of VSCode, not Home Assistant. And their position on the matter is:
We’re currently not targetting or supporting mobile devices for vscode.dev right now
https://github.com/microsoft/vscode/issues/136762#issuecomment-964897591
Though that is specifically the web browser version, it applies to the desktop version too, as that is for well… the desktop.