Thanks for your replies. May have mis-worded a bit trying to keep it short.
My miniscule understanding of the TM47 is that it's an application asking (the gov't) to stay for 90 days, given you have a current visa/extension when applying.
Current plan is to go to Vientiane for a new visa Sep.21.
Only questioning if the 90-day "report" grants time beyond the extension (if/when accepted)
If you mean the 60-day extension, that's issued once per visa and I've already used it (by mistake while waiting for them to extend one of the last-minute covid deadlines.)
Lack of (time with) funds on account or of course I would apply for a new 1-yr extension. Just looking for anyone who's possibly jumped these hoops already, so thanks for your friend's story.