I freshly installed Selenium and ran it with some python code, using Chrome browser (Chromium), on Ubuntu.
Chromium 79.0.3945.79 Built on Ubuntu , running on Ubuntu 18.04
As you can see I cannot login to gmail, this is what I get when I enter the correct email and password.
EDIT: I tried it on GeckoDriver (Firefox 71.0) as well and encountered the same problem.