Road cycling shoes are purpose-built for maximum power transfer. They feature ultra-stiff soles—often full carbon—and a smooth bottom with a 3-bolt cleat that sits exposed on the outside. This design minimizes flex so more of your effort reaches the pedals, which is why they're the go-to for road racing, fast group rides, and time trials.
The downside is walkability. That exposed cleat and lack of tread make walking slippery and awkward, and repeated walking on hard surfaces can wear down your cleats quickly. If you're just doing a quick cafe stop, it's manageable—just walk carefully.
If off-bike stops are a regular part of your rides, consider gravel or commuter shoes with a recessed 2-bolt cleat instead. They walk much better, though you'll sacrifice some pedaling efficiency. For most dedicated road riders, the performance benefit of road shoes outweighs the occasional awkward stroll.