If anyone in the future will come across this thread:
rpm-ostree update- reboot
sudo rpm-ostree install https://mirrors.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm https://mirrors.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm;sudo rpm-ostree install akmod-nvidia xorg-x11-drv-nvidia- reboot
flatpak update