Hi Elias
MongoDB users are primarily targeted to reflect “system users” (eg. the identity of the driver instance in an application connecting to the DB, or the identity of a DBA ops person). rather than application “end users”. For those latter types of use cases, MongoDB Realm is specifically designed to target this: https://docs.mongodb.com/realm/mongodb/
With that said I have seen the need to drive Views based on the specific “system user” connecting and there is currently an enhancement request open for this which you can upvote: https://feedback.mongodb.com/forums/924280-database/suggestions/40642771-allow-views-with-programmatic-role-based-access-co
Some related useful info if you’ve not yet seen it: https://www.practical-mongodb-aggregations.com/examples/securing-data/restricted-view.html
HTH
Paul