The first days of the new orders the Laos border points told people not to exit as they could not exit and re-enter the same day. That was incorrect applications of the new rules and has now stopped.
Employed (contractor ok) with payslips / proof with a letter stating ability to work 100% remote, plus 500k in the bank, is about the most locked down sure thing I feel.
You want either a portfolio or a strong letter of engagement from your client.