Yup. I've done it that way for a few years. Will do the same way this Tuesday when in Savanakhet. Gets me out in the Prasat and other areas every 90 days for some visiting and shopping. Since the Covid stuff started I went onto a retiree visa for the past couple of years. Borders were all closed.A 1 yr extension based on marriage is available in Savanakhet, Laos for 5000 baht, with no financial records required. Service is next day.
The down side is you must exit the country every 90 days.