@dunlix It would be beneficial to confirm APT-Sources, e.g.;APT-Sources: http://repo.mongodb.org/apt/debian buster/mongodb-org/4.4/main amd64 Packages Description: MongoDB shell client
Note the repo.mongodb.org bit above. Preferential to use mongo built pkgs if available. And they should be for Ubuntu. But maybe not set as default? So just confirm this bit for me whilst at it, eh?