Comment # 38 on bug 1182666 from Stefan Dirsch

Ok. I was able to download 5.11.4-1.2 and 5.11.4-1.3 packages and installed
both. Result then is

# find /lib/modules/ -name nvidia*|xargs ls -ld
drwxr-xr-x 2 root root     4096 Feb 24 23:42
/lib/modules/5.10.16-1-default/kernel/drivers/net/ethernet/nvidia
drwxr-xr-x 2 root root     4096 Mar 16 23:01
/lib/modules/5.11.4-1-default/kernel/drivers/net/ethernet/nvidia
-rw-r--r-- 1 root root  3761000 Mar 16 23:01
/lib/modules/5.11.4-1-default/updates/nvidia-drm.ko
-rw-r--r-- 1 root root 49582696 Mar 16 23:01
/lib/modules/5.11.4-1-default/updates/nvidia.ko
-rw-r--r-- 1 root root  2203248 Mar 16 23:01
/lib/modules/5.11.4-1-default/updates/nvidia-modeset.ko
-rw-r--r-- 1 root root 40844608 Mar 16 23:01
/lib/modules/5.11.4-1-default/updates/nvidia-uvm.ko

So still works for me.