On a public network it is bad enough but at home ... One solution is a WiFi repeater. You can buy one, of course. But you can also make one out of an ESP8266 and some code from GitHub.

Highly Compatible with Your Device-Up to 35 Devices: Wireless repeater wifi extender, easily connect to many brands of router, keep a strong connection for your devices. This network extender can ...

"Wi-Fi booster" is a generic term for both extenders and repeaters, and a Wi-Fi bridge is for connecting a wired-only device to a Wi-Fi network. You've probably seen the terms Wi-Fi extender ...

the esp_wifi_repeater firmware does have an automatic mesh mode which seems like it would be a fantastic fit for this design. Putting together an impromptu mesh WiFi network with a bunch of cheap ...