NVIDIA have just released driver version 510.68.02, and the (very brief..) details are here:   https://forums.developer.nvidia.com/t/linux-solaris-and-freebsd-driver-510-68-02-production-branch-release/212651

Although there is no mention in the notes, this version compiles/runs OK with Kernel 5.18 (tested with 5.18-rc4):
……………………..
ld -r -o /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-modeset/nv-modeset-interface
.o /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-modeset/nvidia-modeset-linux.o /ho
me/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-modeset/nv-kthread-q.o
 MODPOST /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/Module.symvers
 CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-drm.mod.o
 LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-drm.ko
 CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-modeset.mod.o
 LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-modeset.ko
 CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-peermem.mod.o
 LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-peermem.ko
 CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-uvm.mod.o
 LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia-uvm.ko
 CC [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia.mod.o
 LD [M]  /home/rgadsdon/NVIDIA-Linux-x86_64-510.68.02/kernel/nvidia.ko
make[1]: Leaving directory ‘/usr/src/linux-5.18-rc4’

Robert Gadsdon.  April 26th 2022.