FreeBSD 14.2 onward does not have an i386 version of graphics/drm-510-kmod package. I built this package on Poudriere successfully for i386 FreeBSD 14.3, but not for 14.4 as there is a problem with an included macro that I don’t have time to investigate right now.
If this is of use to you on FreeBSD 14.3 or 14.4, download the ZIP file, expand it on your system, then install.
cd /home/vince unzip drm-510-kmod-14.3.zip sudo pkg add ./drm-510-kmod-5.10.163.1403000_13.pkg sudo pkg lock drm-510-kmod