Respect ratio when using ggarrange() and geom_sf()

I'm trying to produce a multi-panel figure to map the different maritime facades of France. A basic reproducible example is:

library(rnaturalearth)
library(tidyverse)
library(ggpubr)

ggarrange(ggplot() +
            geom_sf(data = ne_countries(scale = "small", returnclass = "sf")) +
            coord_sf(xlim = c(-6, 3),
                     ylim = c(48.5, 52)),
          ggplot() +
            geom_sf(data = ne_countries(scale = "small", returnclass = "sf")) +
            coord_sf(xlim = c(-10, -1),
                     ylim = c(43, 48.5)),
          ggplot() +
            geom_sf(data = ne_countries(scale = "small", returnclass = "sf")) +
            coord_sf(xlim = c(3, 10),
                     ylim = c(41, 44)),
          ncol = 1)

I can't find a solution to align my different panels so that they have the same width, without distorting the aspect ratio of each panel. Basically, I want each panel to be, e.g., 8cm wide, with a varying height so that each map is not distorted.

I've tried align = "h", but it does not work: I get similar widths but the ratios are distorted.

I have also tried multiple other things, such as exporting each panel with a set width, to then extract the ratio of each figure and then use relative heights in ggarrange(), but it does not work either.

Would you have a solution for this?

library(rnaturalearth)
library(tidyverse)
library(patchwork)

patchwork::wrap_plots(
  ggplot() +
            geom_sf(data = ne_countries(scale = "small", returnclass = "sf")) +
            coord_sf(xlim = c(-6, 3),
                     ylim = c(48.5, 52)),
          ggplot() +
            geom_sf(data = ne_countries(scale = "small", returnclass = "sf")) +
            coord_sf(xlim = c(-10, -1),
                     ylim = c(43, 48.5)),
          ggplot() +
            geom_sf(data = ne_countries(scale = "small", returnclass = "sf")) +
            coord_sf(xlim = c(3, 10),
                     ylim = c(41, 44)),
          ncol = 1)