unfortunately the pdf itself has some typesetting issues. Whats about all those overflowing boxes and the small black boxes all over the document?
[0]: https://tug.org/tug2026/program.html#:~:text=Clemens%C2%A0Lo...
[1]: https://tug.org/tug2026/cfp.html#preprints
[2]: https://tug.org/TUGboat/#:~:text=vol%2E47%2C%20no%2E2%20%28T...