For the longest time, all browsers will always use HTTP in schemeless URLs (when HTTP or HTTPS is not specified). Chrome is flipping this with version 90
Chapters
* HTTPS by Default 0:00
* What happens Today 1:00
* What will happen in Chrome 90 4:00
* HSTS? 6:20
* is HTTPS everywhere dead? 7:10
* How to Enable 8:20
Video https://youtu.be/XrlfX0duLKQ
https://latesthackingnews.com/2021/03/01/google-will-launch-https-first-approach-with-urls-from-chrome-90