Zoom out of website when using RSelenium without changing page size/resolution

I'd like to zoom out of RSelenium remote, but this is surprisingly difficult to find a solution. I am aware of

• How to zoom out page using RSelenium library in R?, but I woud like to not adjust the page size or the resolution---simply zoom out.
• I have pondered sending control + substract simultaneously, but this is also not quite working. I have taken a look at How to press two keys simultaneously (i.e., control-s) in a webpage using RSelenium?, which as the OP noted, control + a worked but not control + s, and subsequently control + substract didn't work either.
• I also tried the Unicode method specified in How to send simultaneous keys in RSelenium ALT+S to web driver?, which did not work either.

library(RSelenium)
driver <- rsDriver()
remDr <- driver[["client"]]
remDr$navigate("https://www.google.com/")
webElem <- remDr$findElement("css", "html")
webElem$sendKeysToElement(list(key = "control", "-"))              ## Does not work
webElem$sendKeysToElement(list(key = "control", key = "subtract")) ## Does not work

The browser is Chrome.