@Za ******
no they don't. The embassies and in-country immigration, when applying for an extension, ask you to fulfill the visa requirements.
The immigration at entry ports only ask you to fulfill the tourist requirements:
20,000 thb in cash
Return ticket
Accomodations booked
Assurance that you're not working in Thailand
Not a single person is being asked to prove their visa application requirements at entry. A few remote worker applicants have been asked to prove that they're actually working remotely, and not in Thailand, which is part of the above list.
Stop spreading misinformation.