I did a land border run today from CM to Laos. My first one by land, it was smooth no questions, not one. Seems like as long as you have your paperwork in order they're all good, however they make everyone pay a fee on the Loas side, depending on your nationality it can run from 2000 bhat to 500 bhat. It's called a "convienece fee". 🤔 I guess this is what the agency and immigration have set up, idk!🤷🏾♀️