I’ve found Home/End to be so incredibly unreliable on Windows.
Some applications take you to the top of the page with Home, some take you to the beginning of the line.
Some applications take you to the top of the page with Home, some take you to the beginning of the line.
Are you sure you didn't hold ctrl down at the same time?
Edit: anyone else has experienced this on Windows without combining with ctrl?
Home/End always worked for me on Windows and didn't work for me on mac until I did a ton of tweaking.
My Dell laptop has Fn keys on the left/right arrow that do home/end in the same way it sounds like Macs do.