I got into speedwalking about 5-6 years ago. I'm not built for running and so don't run or jog often, though sometimes when I'm in a good mood I might go for it. (For every collegiate athlete, pro, and Olympian , there's got to be some folks on the opposite end of the bell curve...)
Speedwalking training is pretty similar to running training, aside from the lower speeds, and that some running shoes are not suitable for walking, for which flats or neutrals are best, and heavy "rocker" type shoes that help facilitate the heel-toe motion are also fine.
The main issue with walking is that it can be harder to find clubs / groups as a working person since many are recreational and retiree-oriented with primarily weekday morning outings, and not many cities have walking clubs that include a training component.
Despite the solidarity, I had made it one of my special interests and so really got into things. It is sometimes awkward when I'm asked about my times since at face value, one may think that I'm super lazy and don't train or try, since they're easily in the bottom 10% of results for mixed run/walk events. But when I was actively training and regularly racing in 2019, my resting heart rate was in the 50s, so I'm pretty sure that I was near the peak of my physical capabilities, and all we can do is try our best.