Limited walkability shoes are a great match for gravel racing and XC mountain biking, where you want a stiff sole for efficient power transfer but still need to handle quick off-bike moments. They feature a recessed cleat with some tread around it, so you can walk across a parking lot or make a brief pit stop without slipping or damaging your cleats.
The trade-off is comfort on longer walks. If your gravel adventures include extended hike-a-bike sections over rough terrain, you'll probably want moderate walkability instead. But for racing or fast rides where you're mostly in the saddle, limited walkability gives you noticeably better pedaling efficiency than more walkable options.
Think about your typical ride: if you're hopping off briefly for a nature break or quick café stop, limited walkability works perfectly. If you regularly hike miles with your bike over your shoulder, step up to moderate walkability.