Copying the inline examples from the quarto docs, we have the following reproduction steps:

1. Create `inline.qmd`:
```
---
title: "Title"
author: "Author"
date: "Today"
format: revealjs
jupyter: python3
---

## Attempt at inline code

```{python}
#| echo: false
radius = 10
from IPython.display import display, Markdown
display(Markdown("""
## Circle

The radius of the circle is {radius}.
""".format(radius = radius)))
```
2. run `quarto render inline.qmd`

This causes in the inline results to display over every revealjs slide

2022-02-04T04:48:42Z
KeAWang
closed
python inline code results displays over revealjs slides
https://github.com/quarto-dev/quarto-cli/issues/305