Here's a fairly balanced article from ars technica covering the first five years of Formula E. https://arstechnica.com/cars/2019/07/formula-e-five-years-on-cars-technica-grades-the-electric-racing-series/
Interesting first look at London's new Formula E circuit. https://www.autosport.com/fe/news/144964/video-first-look-at-london-new-fe-track
If you like racing where every team has a realistic chance of winning, you will love Formula E. Check this out from Forbes: https://www.forbes.com/sites/gauravsharma/2019/07/29/formula-e-versus-formula-1-microcosm-of-the-tussle-for-mobilitys-future/#7e0e3def3dfa