You either misread my comment, didn't read it fully, or lack knowledge. I'm talking about Laos only. There is no such thing as being ask 20k baht at any entry into Thailand from Laos. What the law says is irrelevant because it has never been enforced at such borders. The word never is important, it's not rarely, it's never. Malaysia and Cambodia is another story, but Laos they do not enforce that law ever. I have cross into Laos and back more than 20 times, and I live near the border. I have neither seen or hear anyone who have been ask, nor read it anywhere. It's not a thing that they do while entering from Laos. You can counter by providing example of people that were ask, but you won't find any because it's not a thing.
Why do you need 20k baht? If you mean the "20k baht proof of fund requirement to get back into Thailand", it's fake news. I've border bounce that border around 20 times in the last 10 years and I've never once being asked nor known anyone who have been asked. They do not ask any question at that border, nor care about your passport history of shady visas or what's not. Nong Khai and Mukdahan are the same in that regard, hassle free border to border bounce from.
You said "woman foreigner they never ask for financial but I also got a single entry non-o", this can imply that if you had ask for a multi entry they may have asked. Your wording was a bit confusing because its as if the single entry was important which it wasnt. There is no proof of funds for you regardless single vs multi entry.
Again, not what I'm asking. Most people here are from countries that will be on such list. No disrespect intended to India, Pakistan, most African countries, etc, it's always harder for them. Any proof or link of such 90 days new visa exempt?