Who offers the strongest WiFi?

I'm curious to know, which service provider or device offers the strongest WiFi signal in the market today? Is it a particular router brand that stands out for its robust connectivity, or do mobile network operators provide a more reliable WiFi experience in certain areas? Understanding the factors that contribute to a strong WiFi signal, such as frequency bands, antenna design, and network congestion, would be invaluable in making an informed decision. So, who is leading the way in delivering the most reliable and powerful WiFi connections?