### Bug description

I'm trying to have boldface symbols in a math equation. `mathbf` works as it should, but `boldsymbol` or `bm` does not work.
```
---
title: "Test"
format:
  pdf:
    include-in-header:
      text: |
        \usepackage{amsmath}
    latex-auto-install: true
---

$$\boldsymbol{F}^* = \boldsymbol{I} + \begin{bmatrix} \lambda & 0 \\ 0 & \lambda \end{bmatrix}$$
```

with `\usepackage{bm}` and `\bm{...}` instead of `\boldsymbol{...}` I get 

```
compilation failed- error
Extended mathchar used as mathchar (14799929).
<to be read again>
                   \relax
l.155 \[\boldsymbol{F}
                      ^* = \bm{I} + \begin{bmatrix} \lambda & 0 \\ 0 & \lamb...


see mwe.log for more information.
```

I'm on arch linux

```
➜ quarto --version
1.2.335
```
![image](https://user-images.githubusercontent.com/27497290/219655467-cfea85f2-815f-4f6e-a4ea-f1c84ecaa2d9.png)

### Checklist

- [X] Please include a minimal, fully reproducible example in a single .qmd file? Please provide the whole file rather than the snippet you believe is causing the issue.
- [X] Please [format your issue](https://quarto.org/bug-reports.html#formatting-make-githubs-markdown-work-for-us) so it is easier for us to read the bug report.
- [x] Please document the RStudio IDE version you're running (if applicable), by providing the value displayed in the "About RStudio" main menu dialog?
- [X] Please document the operating system you're running. If on Linux, please provide the specific distribution.
dragonstyle
2023-02-17T12:35:23Z
koehlerson
bug
v1.3
closed
Boldface in equations
https://github.com/quarto-dev/quarto-cli/issues/4403