If you’re on Apple CPU (M1/M2) - they’re probably not available yet.
The information about what is available on Apple ARM is not available anywhere - either VCV are too busy to make it available or it’s a secret.
Clock ?
The library shows 66 modules, when i do a search for “clock” and “clock generator” - Which one are you missing ?
the plugins should be in a dir now called “plugins-win-x64” instead of the old “plugins” same place.
Some of the plugins may update, but fail to work with older versions of rack.
I recommend a reinstall of VCV Rack, the latest verions.
you may have to delete/rename your old “plugins” dir, if the update process failed before, and let rack download the plugins to the newly named dir “plugins-win-x64” - backup anything you want to keep, like module presets.