fonts - How can I get bold math symbols? - TeX - LaTeX Stack Exchange
Math font attributes
Math font attributes
Gro-Tsen on X: "Classic LaTeX: the answer to a question which aught to be trivial (getting bold math!) reveals (https://t.co/1ZLpXve2VU) the existence of about 42 packages to do it, with obscure interactions
latex - bold not bold enough in math - TeX - LaTeX Stack Exchange