Lost 10 days of my regular visa extension because of the usual last minute communication which made me get one today. But not a bit sad about it. Just means I can now stay about 4 months more. ๐
Cannot say for sure, as they give a 15 day under consideration stamp first. But here is the basic rule: If it is your first covid extension, they will start the 60 days at the day of application (so you will lose days when going early). Subsequent covid extensions will be added at the end date of the former one then. Not makes sense. It is what it is. And some immigration offices do things their inconsistent way. We just have to endure that.
I understand that as one of the 50+ persons you donโt really have a need to dive deeper into the plenty options for the younger crowd you mentioned. But if you would, you would quickly notice that they are all less attractive / more pricey or less flexible then the Non-O retirement ones. ED visa make you stuck in one place. B visa make you work for unattractively little money. Elite is just a total rip-off. Just to mention a few aspects.
Unlike for old people (50+, who have it easy), for the younger crowds there are no equally attractive longer term visa options available. Thus pre-covid there was quite some border bouncing. And as the rather big group of former border bouncers is attractive for Thailand in times they have too little foreign money spenders in the country, they allow for covid extensions instead of border bounces. But what they really should do is introducing attractive visa for younger people as well. There is talk about that. But talk is cheap here. No reason people under 50 could not stay under the same conditions as the 50+ retirement visa, really. But TIT.