The risks aren’t especially known, but that’s most of the reason why one of the first things I got for my printer (Bambu P1S, bought just days before they did their nasty closed ecosystem nonsense) was a “Bento Box”, which has a 2-step filter that lives inside the printer’s chamber.

As soon as I have the financial stability and space, I expect to enclose it and vent it out a window. Whatever the true risks are, I simply don’t trust melting plastics in my living space.

It's not overlooked, it's highly discussed in the community. From which materials are best to avoid VOCs, to filtering, to how to position it in the house or outside.

What about 2D printers which emit toxic toner (for laser, and possibly ink for inkjet) particles and fumes?