I see! In that case gt may be of some use:
library(tidyverse)
library(gt)
df = tribble(
~awards, ~proportion, ~proportion_se, ~total, ~total_se,
"Yes", 0.62, 0.0344, 3840, 213,
"No", 0.38, 0.0344, 2354, 213,
)
gt(df) |>
gt::cols_label(awards = "Award",
proportion = "Mean",
proportion_se = "SE",
total = "Mean",
total_se = "SE") |>
tab_spanner("Proportion", contains("prop")) |>
tab_spanner("Total", contains("total")) |>
fmt_percent(contains("prop"), drop_trailing_zeros = T) |>
cols_width(proportion:total_se ~ px(75))

If you put the above code in an RMarkdown chunk it'll show the gt HTML table, much in the same way that when you put ggplot2 code in a chunk it'll show the resulting plot.