@Pete *****
unless I am greatly mistaken you cannot go from an Elite visa to any other type of in country anything (no Non-O, no Non-B, no extension based on marriage retirement etc). I think you're going to have to leave the country, stamp out on that elite entry stamp (or the extension from it) then come back in with either a tourist visa (that you buy from a thai consulate) or visa exempt and THEN start the process of getting a Non-O based on being married to a thai (seeing as that visa/extension type allows you to get a work permit and work here)
Get the 60 day covid extension to buy you time to see what if any nearby countries are open in a few months more and if the entry requirements to thailand ease up or not