Restricting link sharing

Hi,
I wonder if it is possible to restrict ‘share via link’ to a specific group.

The panel admin setting is an all-or-nothing configuration (or, rather everyone-or-nobody). I need to enable share via link to a specific (small) group of users.

Can I do this either via command line or RESTful API?

Any pointers will be appreciated.

Have you activated “sharing with groups” and also outside own group?

https://docs.nextcloud.com/server/latest/admin_manual/configuration_files/file_sharing_configuration.html

Yes, however, sharing with groups is about internal sharing (which I do want for everyone).

I don’t want anyone to be able to share via link except for a very small group of people (which I can, obviously, assign to a group).