TV should just be a TV and have a choice of which device to use for WIFI, otherwise you’re stuck with what comes with the TV.
If the technology changes, you always have the standard HDMI inputs to leverage with an external device.
I have WD, Roku and Sony external devices that I’ve used for my other TVs, but my new 32” smart TV came with it and it was worth the $30 premium over the next model down the scale.