are you able to broadcast your voice to other program without having to monintor it , which will lead to feedback ? can you just output mic without monitoring?
No. There is one non-streaming output from OBS, and that's the Monitor.
OBS is not meant to feed other apps. It's meant to stream directly, and the Monitor is like the headphone output of a professional console: it's for the producer only.
That said, I do have a rig that uses OBS's Monitor to feed a DAW (Digital Audio Workstation: a dedicated, purpose-built app, just for sound), and that's only because that instance of OBS is playing videos. All of the audio work in that rig is done by the DAW, not OBS, and OBS's Monitor is simply a way to get the video soundtracks into the DAW. The mics go directly to the DAW, not OBS, and all of the different destinations are fed separately with different content from the DAW, not from OBS.