Keep it simple. 60 day tourist visa extendable once for 30 days. If you really wanted the last month just bounce out to Cambodia or Vietnam or something like that for a romantic weekend ( once borders reopen) that gives you another 30 days (extendable once) . Your agent is nuts.
where did you hear this... got a source? It's really important that if you make a statement like this then back it up with something otherwise we're all just wasting time.... and don't mention The Bangkok Post.