Sorry I don't have an english version of this article, this is the best source I could find for it.
https://www-heise-de.translate.goog/news/Microsoft-krallt-sich-Zugangsdaten-Achtung-vorm-neuen-Outlook-9357691.html?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=de
Yeah I am open to anyone who can prove this wrong/correct. I saw it and thought it needs sharing. I am more than willing to ask forgiveness afterwards :-) Luckily I too only use Thunderbird.