Installed elementaryOS today, everything worked as expected on Windows.
Tested on 2018.3.12f1 & 2019.2.0a11 (bug exists on both).
Issue persists with both Intel & Nvidia graphics drivers.
1. UI Cut
The UI is not scaling correctly. Parts of the UI are not visible in the screen.
same problem here. thanks to SuperSteeeeeeeve, resizing and maximizing fixes the problem but temporarily. I need to maximize every time I open a project.
Unity: 2019.4.17f1
Distribution: elementary OS 5.1.7 Hera (based on Ubuntu 18.04.4 LTS)
Kernel: 5.4.0-58-generic
GTK: 3.22.30