Have looked at you information and advice many times Tod i sometimes wonder why the thai administration make it so hard sometimes to understand and for you to get your head around it i found i became more conversant with time .I guess what has made it more confusing is the covid19 and the russia ukraine war .And the changes with a income reference from embassies .

No you are ok you allowed so many days late to report I think 5 or 7

usually 1 month before the visa expires