Bug summary

generate axes by axisartist.Subplot can not modify xlabel's fontsize and location what can be done across generate axes by plt.subplots

Code for reproduction

import matplotlib.pyplot as plt
import mpl_toolkits.axisartist as axisartist

fig = plt.figure()
ax = axisartist.Subplot(fig, 111)
fig.add_axes(ax)

ax.set_xlabel('t', loc='right', fontsize=15)

ax.set_xticks([])
plt.show()

Actual outcome

Expected outcome

Additional information

No response

Operating system

Windows

Matplotlib Version

3.4.3

Matplotlib Backend

module://matplotlib_inline.backend_inline

Python version

3.9.7

Jupyter version

6.4.5

Installation

No response