Quota per folder not per user?

Nextcloud version (eg, 12.0.2): 17.0

Hi everybody,

I’m using nextcloud for some years which is usually running smoothly.
Today I discovered that I can not find an option to set a quota per folder (not per user). This is especially useful if you share a folder and want to make sure that who ever uploads files, the folder can not get greater than X GB. I even couldn’t found an app to set directory quotas.
Is there really no option for it or did I just not found it?

Thanks in advance.