I'm using macOS Monterey 12.3.1. I recently updated Quarto to version 1.3.433.
When I render my Quarto file in R Studio IDE I get a fail message (in the 'Background Jobs' panel) stating 'Unable to locate an installed version of R.'
I also ran 'quarto check' in the Terminal after reading this community question quarto: unable to locate R installation. The output for this didn't show a check for R installation
Not quite sure. Usually when you update R to a major or minor version, it is good practice to rebuild everything. But renv should do that by default by having a project library per version, unless you configured differently.
Anyhow, you should check that renv is initialized and restored correctly to be sure that Quarto can run R code.