The general answer is to enable the RPM Fusion repos. But that won't automagically install the drivers for you, you'll need to manually identify what's needed and install them accordingly. This guide is a decent starting point: https://www.fosslinux.com/134505/how-to-install-key-drivers-on-your-fedora-system.htm

But also consider simply using a distro/spin that has all the drivers included (or automates the install), such as Nobara, or one of the Fedora Universal Blue distros.

By default, you can just type nvidia in the software store and click install, wait 5 to 10 minutes after it finishes and restart.

But you will need to run one command before you restart, to register it with secureboot:

sudo kmodgenca -a
sudo mokutil --import /etc/pki/akmods/certs/public_key.der

See: https://rpmfusion.org/Howto/Secure%20Boot

I use ublue, so I never need to deal with this.

Both Debian and Ubuntu come with nonfree firmware blobs by default. Nonfree drivers such as the Nvidia proprietary driver can be installed graphically in Ubuntu if you open the drivers app.

Debian instructions are here and involves adding the non-free contrib repos to your /etc/apt/sources.list and then installing the nvidia-driver package