Also curious to know why web extensions and app extensions have different permissions? The permissions in Safari for requested hosts are in ask mode by default after installing a web extension. By contrast, in Chrome and Firefox, web extensions permissions for requested sites are in allow mode.

+1, would also like to know if there's any plans to support this or the intent behind the lack of support.

Seeing the same on Safari 15.5, is there a fix planned for this? Notably I do not see this issue in Safari Technology Preview.