…and @eanders made some attempts at a simulator extension for keyboard and mouse, but they were probably more akin to your already produced browser extension and keyboard entry for “ask for string” etc. in Arcade.
So a common theme among some people seems to be a wish for more input possibilities overall (and others have also made comparisons to the official python simulator’s / IDE’s serial consoles earlier) and maybe 2-way console interaction.
But how big the demand is, or if there are any technical synergies between the wishes and different editors, I don’t know. But since the input() function or some ways to get data into a program is a pretty common (educational) theme*, maybe enough to reopen the already filed request above?
*Many curriculums contain loading tables into arrays / data structures, which is a challenge, at least in Arcade, but you had that already very early on in e.g. the “Date Science Editor” MakeCode Lab etc.