I’m fairly certain it isn’t, at least in the core engine. The dev team works really hard to make sure every feature going into core is:

• useful for many/most users
• impossible to create otherwise
• has significant community demand.

Things like eye tracking are more likely to be done in add-ons, GDExtension, and the like. You’d have better luck looking for an addon or C++ library that could get integrated

Do you mind if I share a link to here for my followers in the microblogging space? This is the only Godot community I can access from Jerboa so I’d enjoy a bit more traction here