Tested on Ubuntu 18.04.
You will want to allow non-root users to capture packets. These users must be part of the wireshark group.
$ sudo apt update
|27 April 2016|
|On the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation)|
|(Text with EEA relevance)|
|THE EUROPEAN PARLIAMENT AND THE COUNCIL OF THE EUROPEAN UNION,|
|Having regard to the Treaty on the Functioning of the European Union, and in particular Article 16 thereof,|