Examples of websites using
IBM Plex Sans
(IBM Plex Sans is a Sans Serif font designed by Mike Abbink of Bold Monday. The font family consists of multiple styles and variations, including regular and italics, and is available in a range of weights)
with
GT Sectra
(GT Sectra is a serif font designed by Marc Kappeler and Dominik Huber and released by Grilli Type in 2014. It is available in three optical sizes (Text, Display, and Micro) with a total of 24 individual styles)