I don't think the Rpi HQ camera is sensitive enough to be a guide camera.
A guide camera needs 1-4 second exposures which is probably too short to get any useful images.
The rpi camera would work as a main camera via long enough exposures (1-5 mins say). Not sure about your issue with the driver but I suspect you may have difficulties even if you had it working.
A better low cost option would be the ASI120 mini mono camera ( at about 3x price of pi HQ)/
I use an RPI HQ camera as an allsky camera
(see : github.com/thomasjacquin/allsky )
to monitor the sky and cloud during a session.
The pi camera with this setup usually runs at 60sec exposures by default which is enough to see stars and clouds.
You might consider redeploying your camera like that if you can't get it working with your current setup. Good luck.
Nick

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