This isn't correct. WiFi devices are simply IP connected devices and Hubitat can handle that just fine if the driver is written well. It's more a matter that it wasn't in the scope from the beginning. The only officially compatible WiFi devices are certain Yeelights and Shelly devices. That's not a limitation of the system, just the availability of built-in drivers for WiFi.
There are many community integrations of WiFi (e.g. IP connected) devices, some very good. I wouldn't call them hacky personally.
But to the OP, you will definitely do better with non-Wifi devices in many instances, but perhaps you can make use of what you already own. I would recommend providing the exact make and model of the devices, since no one will be able to offer a recommendation of how to deal with "LED light strip controller" for example. And Tuya makes a ton of stuff. Need specifics to help.