Here at Yohz Software, we receive the occasional email asking if our PostgreSQL-centric products run on Linux. Being Windows applications, our products will run on Linux but requires Wine (the software, not the drink). DB Doc has been able to run on Ubuntu since 2014, and we recently installed and ran PgComment and SQL Multi Select on Ubuntu 17.04 and Fedora 25.
SQL Multi Select on Fedora 25 and PlayOnLinux:
DB Doc on Ubuntu and Wine.
There are the occasional GUI quirks, which we try to fix as soon as possible, which is why you sometimes see different text and/or images if you run the same application on Windows. If you discover any quirks/inconsistencies we have overlooked, please do drop us a line at firstname.lastname@example.org.