Thai food in Thailand is nowhere near as spicy as “Thai Spicy” or even “Hot” Thai food in the states, in my experience. Some places I went it approaches or slightly exceeds “Hot”, but on the whole I think the spiciness of Thai food is way overblown.
That’s how I feel about spicy food in Texas. “Texas Spicy Chili” anywhere else in the US is going to be way hotter than what is generally found in Texas.