This is a minimal Vite + Vue 3 setup. To get setup:
yarn && yarn dev
To reproduce the issue:
Open the ListboxOptions, click on the disabled option (Simon).
The disabled option should now be in focus.
Open the ListboxOptions, click on the disabled option (Simon) and then navigate up or down with the arrow keys.
The disabled option should now be in focus.
This issue doesn't happen in latest Firefox.