CURRENT: working alternative nVidia GPU driver for x11/nvidia-kmod?

Since some recent changes to the CURRENT kernel, x11/nividia-kmod/driver is no longer working.
Either kernel module nvidia-modeset.ko/nvidia.ko reject to load with a failure when both  the following
OIDs are set to ZERO:

debug.link_elf_obj_leak_locals=0
debug.link_elf_leak_locals=0

or, if leftto their default (ONE), the kernel module loads results in a blank/black screen, with a carret like one on the console in left upper corner and a 
immovable mousepointer. On reboot (reboot or shutdown -r now), FreeBSD CURRENT never reboots, last message on console is something everything has been synced. I have to
switch OFF and ON the box manually.

Since I have a reasonable modern hardware, GPU is a nVidia GTX 5060Ti, I assume that x11-drivers/xf86video-nv isn't an appropriate choice. 
I'm somehow drifting like a corpse in space here and like to ask whether there is a suitable interim solution at hand whilst the problem
with the nVidia BLOB could be fixed?

Thanks and best wishes,

oh