The simple answer is yes, crossing the border by land is fine though you should spend a couple of days exploring while you are away to make a trip of it.
would you mind if I messaged you? I’m planning on bringing my little dog and whilst I have done lots of research it would be nice to chat to someone directly who has experience.
As a prospective DTV applicant, it does seem that those who genuinely meet the criteria and intend to use the visa as intended, have a good experience.
individuals who are researching applying for a DTV will have a foreign bank account in the majority of cases. These accounts will accrue charges when used in Thailand so individuals will also be looking at alternative banking arrangements. The OP is warning of the downside to a couple of these alternatives to help those individuals.