Roughly how big are these files, and are they stored locally on your machine or mounted over the network (using FUSE, GVFS, or a kernel-based one like NFS?)

I’ve noticed a few linux file managers are quite cautious loading multimedia thumbnails for networked filesystems mounted with GVFS, not sure of a fix for that aside from looking for a command line utility to mount using FUSE instead

There should be an option in the setting to choose the max file size for which to generate the thumbnails.

classic gnome moment

Something similar happened to me once and installing tumblerd fixed it.

On Arch, I use ffmpegthumbnailer to accomplish this.

Kickass Women isn’t going to see this comment because this user is from lemmy.world, which has blocked my instance.