Are you installing a stand-alone version of cuda?
I am running the nvidia driver and cuda with both installed from the rpmfusion repo.
To install them both at the same time on a clean install of both f32 and f33 I used
dnf install akmod-nvidia nvidia* xorg-x11-drivers-nvidia* kernel-devel kernel-headers
and everything works both cuda and nvidia related.
No, that dnf module disable command will not turn off the nvidia drivers. What it does is disable the modular version of the nvidia drivers from the repo to avoid installation conflicts and ensure you only get cuda from the newly enabled repo.
I personally have never had a need to install from (or even enable) that cuda repo. I have also helped others that have seen conflicts remove software from there and go only with the rpmfusion version since it has specifically been tailored to work with the nvidia driver.