Recently my Google Home (Nest cam indoor gen 1) has started to show an orange light. The documentation says an orange light due to connection issues. I have a good connection to my camera (I can access it). I have tried restarting the camera, it goes through the normal blue light, then goes green for a split second before changing to solid orange.
I can't find anything about this online anywhere.
I don't see an orange status light documented on Google Nest Help's topics, but there are 3rd-party postings about an orange status light on a Google Nest camera indicating no Wi-Fi connection. Has anything at all changed that would affect your Wi-Fi signal strength at your camera's location?
https://support.google.com/googlenest/answer/9268073?hl=en#zippy=%2Cgoogle-nest-cam-wired - It may have been yellow (in this documentation). The WIFI signal is strong - the hub is in the same room as the camera.
I'm just another Google Nest customer and I don't really know what color your status light is showing, but none of the solid colors seem applicable. If your camera is otherwise online, accessible, and recording, perhaps it's just a malfunction in the status light and you could ignore it.
If you wanted to, you could try removing it from the Google Nest app, doing a factory reset (using the second set of instructions, for "Factory reset", in the link below, and re-installing. I don't know if that would help, and you would lose any Nest Aware history you have for the camera.