No idea as we live in Thailand. We have a house in Laos and pre-Covid it was fine for us to stay there for a week or so, but currently we have no plans to live there. I have a feeling it will be difficult and costly to get the marriage recognised in Laos, but until we need to do it I'll hold off. Hopefully, it will be easier to do in the future. Our son (born in Thailand) has to get a Lao visa, despite having a Lao mother, as he only has a UK passport.