Thank you for the quick fix @anntzer !

Owee, I'm MrMeeseeks, Look at me.

There seem to be a conflict, please backport manually. Here are approximate instructions:

1. Checkout backport branch and update it.

$ git checkout v3.2.x
$ git pull

2. Cherry pick the first parent branch of the this PR on top of the older branch:

$ git cherry-pick -m1 158d5798cec90fa50851fb654fc7d872f8fad5f4

3. You will likely have some merge/cherry-pick conflict here, fix them and commit:

$ git commit -am 'Backport PR #17255: Fix eps + usetex combo.'

4. Push to a named branch :

git push YOURFORK v3.2.x:auto-backport-of-pr-17255-on-v3.2.x

5. Create a PR against branch v3.2.x, I would have named this PR:

"Backport PR #17255 on branch v3.2.x"

And apply the correct labels and milestones.

Congratulation you did some good work ! Hopefully your backport PR will be tested by the continuous integration and merged soon!

If these instruction are inaccurate, feel free to suggest an improvement.

This does not backport cleanly due to collisions with #16476

If I resolve the conflict in the obvious way

diff --git a/lib/matplotlib/texmanager.py b/lib/matplotlib/texmanager.py
index 1e788a64c..d8bf8ef13 100644
--- a/lib/matplotlib/texmanager.py
+++ b/lib/matplotlib/texmanager.py
@@ -219,7 +219,11 @@ class TexManager:
 \usepackage[papersize={72in,72in},body={70in,70in},margin={1in,1in}]{geometry}
 \pagestyle{empty}
 \begin{document}
-\fontsize{%f}{%f}%s
+%% The empty hbox ensures that a page is printed even for empty inputs, except
+%% when using psfrag which gets confused by it.
+\fontsize{%f}{%f}%%
+\ifdefined\psfrag\else\hbox{}\fi%%
+%s
 \end{document}
 """ % (self._font_preamble, unicode_preamble, custom_preamble,
        fontsize, fontsize * 1.25, tex)

still results in the incorrect media box. I am unfortunately at the end of my expertise at this point.

I think that's because #16913 also needs to be backported.