I've only had to jump over to RStudio for quicker/easier plot size tinkering in Quarto/Rmd files since Positron can't resize plots based on chunk parameters (yet! there's an open issue for it github.com/posit-dev/po...)

Can Plots Pane automatically respect dimensions in chunk options? · Issue #3676 · posit-dev/positron

I'm not sure if this is a Positron thing, a knitr/R Markdown thing, or a Quarto thing. It was addressed and supported in RStudio (see rstudio/rstudio#11708 (comment)), and there's (kind of) an issu...

I am missing semantic highlighting in Python (code looks much better in Pycharm or Vs Code) and Github Copilot (I think its quite handy for some tasks but one could try Codium).