Finally someone asking the real questions here

Easy - Once you’re living there they’d just ask in any random audit. Are you gonna make up fake bank statements, fake invoices and fake everything during an investigation in a foreign country?

Doesn’t Thailand have CFC rules? If it does what you’re suggesting is illegal regardless of where you set it up.

It works the other way around, the burden is on you to prove you were not there.

Proof is made via credit card statements, travel tickets, accommodations, etc. Most common is credit card statements.