Geforce Now and Mic support

So recently I downloaded the GeForce Now app for Chromecast and it's working pretty good aside from the fact that I can't figure out a way to get microphone support . Even just asking the AI just now it says that I can't just get a Bluetooth headset and connect it to Chromecast ?

My TV does have a headphone jack and so that might be one simple workaround with a wired headset that has a mic on it but I'm not sure if that headphone only Jack supports audio coming in . It's some random 32-in TV from a few years ago so it doesn't really have all the bells and whistles . Even has a USB connection on it but it's not like a PC where it will recognize a USB headset , it just seems like it's more for viewing stuff on a USB flash drive or something .