This is a site for 3rd party developers. You might try posting on OBS support forums or community chat or talking to Logitech Support if you feel the headset is a problem.
For OBS:
https://obsproject.com/chat or
https://obsproject.com/forum/
Related, I do have a G430 headset and have never had the problems you are mentioning, but I do not always stream with them either. I feel that people will be asking you for your OS, what version of OBS, and if you have the latest firmware/drivers for everything when you ask for support, so be sure to include that kind of information on the OBS support forums.
Good luck!