In my case when i got it , it was on the time that i had to switch from using usd to have all my clients pay me in euro so my euro bank statement was less than 3 months and matching their requirements and attached my 6 months usd bank statement which was having a 0 dollar ending balance but shows that i sustained that amount of money 3-6 months ago and before that and it was fine they approved me
yeah it seems like you could get rejected again if you didnt present the bank statement from a personal account , and their requirement is that the money doesnt go below 500k for 3 months at least
i used to enter thailand with a passport full of thai visas & extensions "normal & covid" but it was a hit and miss for me , mostly they stamp and never ask any questions and only a couple times they asked me for where am i staying and how many days but never took me to that office some are talking about , i was once though asked to stamp through a supervisor while crossing from laos to bkk on an empty passport with ed visa