[Python] Seaborn fig_size = textwidth: figure much smaller than expected

I'm having an issue with setting the figure and font sizes in my seaborn plots to make sure that everything is the expected size and can be pasted into a Latex file for publication. Fig_size is set to \textwidth in the Latex document, i.e. 7 inches, but the resulting figure looks much smaller and very squished (s. first attached image). When I double the figure size it looks like what I'd expect. I would like to avoid doubling figure size because I'd like the font sizes to be the same as that in the main text and not have to do any conversions for that. It almost seems like fig_size uses cm as a unit but I looked it up and it should be inches. Does anyone have any insight into what's happening? Thank you in advance!

Figure created with fig_size=(textwidth, 3)

Figure created with fig_size=(textwidth x 2, 3 x 2)

textwidth = 7.00925
y_vars = ['test_1', 'test_2', 'test_3']
titles = ['Test 1', 'Test 2', 'Test 3']

fig, axes = plt.subplots(1, 3, figsize=(textwidth, 3), sharey=True)

for i, (y, title) in enumerate(zip(y_vars, titles)):
ax = axes

# Stripplot
sns.stripplot(
x='diagnosis_grouped', y=y, data=plot_input, ax=ax,
palette='viridis', alpha=0.7, jitter=True
)

# Boxplot
sns.boxplot(
x='group', y=y, data=plot_input, ax=ax, showfliers=False,
width=0.3,
boxprops=dict(facecolor='none', edgecolor='black'),
medianprops=dict(color='black'),
whiskerprops=dict(color='black'),
capprops=dict(color='black')
)

ax.set_title(title, fontsize=font_size)
ax.set_xlabel('Group',fontsize=font_size)
if i == 0:
ax.set_ylabel('Score',fontsize=font_size)
else:
ax.set_ylabel('')

ax.tick_params(axis='x', rotation=20,labelsize=font_size)
ax.tick_params(axis='y', labelsize=font_size)

plt.tight_layout(rect=[0, 0, 1, 0.95])
plt.savefig('/path/figure_1.eps', dpi=800)

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