Gravel Bike Geometry & Handling - Links for learning more

Thought I'd place this in the bikes forum as many members have had questions on how the various dimensions of a bike's frame affect the ride. 

I thought this first link gave a very good explanation and put things in terms of gravel riding.
http://https://cyclingtips.com/2021/12/gravel-bike-geometry-101-how-trail-stack-and-reach-affect-fit-and-handling/

This 2nd link goes into more detail on a number of dimensions and effects (rake, trail, wheel flop, gyroscopic effects, and more...)
https://cyclingtips.com/2018/11/the-geometry-of-bike-handling-its-all-about-the-steering/

Thanks for those!  Most helpful.