Thank you for the links, decisions taken are clear and well justified.
I'd tried to look at advanced configuration settings https://www.mediawiki.org/wiki/Wikibase/Installation/Advanced_configuration#... , but the link there to https://phabricator.wikimedia.org//r/p/mediawiki/extensions/Wikibase;browse/... looks broken and I don't know enough to reconstruct it :-(
Regards, Victor Agroskin https://www.linkedin.com/in/vvagr/