I looked into this. If I am remembering correctly the price was higher. It is just easier to connect a mini PC to an hdmi port and bypass all of the built in TV functionality.
There's historical speculation that a smart TV could connect to an open wireless access point, or more realistically, that it refuses to operate without internet access, perhaps after a certain number of power on hours.
Yes, the price is higher, maybe partially because it's not ad-subsidized. I was happy to pay it, this is what I bought: https://www.sharp.eu/sharp-nec-multisync-e868
There's historical speculation that a smart TV could connect to an open wireless access point, or more realistically, that it refuses to operate without internet access, perhaps after a certain number of power on hours.