Average property tax in Texas is 1.69%. It seems in my area the nice areas are around 2%. I'm not sure where you're getting 3% from.
Also, our house in TX is almost half the price of our house in CA (and much nicer), so even though the rate is double the actual tax amount is the same.
I was looking at Austin on Zillow and property taxes were really high, maybe it's just the areas I looked at.
NW Austin resident checking in. 1500 sq ft house = $7700 property taxes (2020). Yeeesh.