I don't think the PDH complex is considered a part of glycolysis, at least from how I was taught about it as a biochemistry major, though maybe this is a difference in opinion-kind of thing. Here's a relevant paper I found on this and a link to an Amboss source.
https://d1wqtxts1xzle7.cloudfront.net/52137133/pdf-libre.pdf?1489420029=&response-content-disposition=inline%3B+filename%3DThe_biochemistry_of_the_pyruvate_dehydro.pdf&Expires=1744831501&Signature=bwGXj3tDyWfU0BZJwNcVnjWCP~IPXjMJTbIAsZDwjQQnUh2GNUbN2lQ5ShmQou9-bnS3v0VydevRP89uIvje5GS3ECm~LFla57UgASe-fYhcBJ8Xf1td11t-2nfrNjNp7h2QBwI7mflDu9d4zE~o4LIWKitc9~24UaPUScr6BfztG8GwJm8kK5Wy4o-onUxi2MgnA-1svgvFGozEzdm6YbptZlyUNP1-aEhRXdt0nbXWWZlpy90zEmELPXEKZfVNrlI9n9RO7TazIgtVnZUJ4hAw2TVh~lTKjg-5HH9jGg45E1lE~W-ARKA06OneuyVgnaoSY0144tgq6l-fT1Pqcw__&Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA
https://next.amboss.com/us/article/Qp0u6S?utm_medium=chatgpt-plugin&utm_source=chatgpt#Z15b082b2c4b82f8ab815ee909bb80639