Opened review for #FreeBSD Bug 287268 on Phablicator as Differential Revision D50697, which adds latest New Feature Branch (NFB) of #nvidia#GPU drivers as x11/nvidia-driver-devel, x11/linux-nvidia-libs-devel and graphics/nvidia-drm[|-510|-515|-61|-66]-kmod-devel.
Once accepted and landed, it would track the latest version of whichever NFB or Production Branch of drivers. Beta Branch of drivers wouldn't be tracked.
https://reviews.freebsd.org/D50697