It seems like ren'py does not support wayland.I tried forcing the use of xwayland and launching through gamescope, but nothing I was able to think of worked.

I'm sorry, but an uncaught exception occurred.

While running game code:
  File "renpy/common/00start.rpy", line 210, in script call
    call _gl_test
  File "renpy/common/00gltest.rpy", line 393, in script
    $ __gl_test()
  File "renpy/common/00start.rpy", line 210, in script call
    call _gl_test
  File "renpy/common/00gltest.rpy", line 393, in script
    $ __gl_test()
  File "renpy/common/00gltest.rpy", line 393, in <module>
    $ __gl_test()
  File "renpy/common/00gltest.rpy", line 320, in _m1_00gltest__gl_test
    _gl_performance_test()
  File "renpy/common/00gltest.rpy", line 345, in _gl_performance_test
    ui.interact(suppress_underlay=True, suppress_overlay=True)
error: wayland not available

-- Full Traceback ------------------------------------------------------------

Full traceback:
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\bootstrap.py", line 277, in bootstrap
    renpy.main.main()
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\main.py", line 660, in main
    run(restart)
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\main.py", line 146, in run
    renpy.execution.run_context(True)
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\execution.py", line 938, in run_context
    context.run()
  File "renpy/common/00start.rpy", line 210, in script call
    call _gl_test
  File "renpy/common/00gltest.rpy", line 393, in script
    $ __gl_test()
  File "/home/tom/ab/renpy-build/tmp/install.linux-x86_64/lib/python3.9/site-packages/future/utils/__init__.py", line 441, in raise_
  File "renpy/common/00start.rpy", line 210, in script call
    call _gl_test
  File "renpy/common/00gltest.rpy", line 393, in script
    $ __gl_test()
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\ast.py", line 1131, in execute
    renpy.python.py_exec_bytecode(self.code.bytecode, self.hide, store=self.store)
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\python.py", line 1061, in py_exec_bytecode
    exec(bytecode, globals, locals)
  File "renpy/common/00gltest.rpy", line 393, in <module>
    $ __gl_test()
  File "renpy/common/00gltest.rpy", line 320, in _m1_00gltest__gl_test
    _gl_performance_test()
  File "renpy/common/00gltest.rpy", line 345, in _gl_performance_test
    ui.interact(suppress_underlay=True, suppress_overlay=True)
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\ui.py", line 299, in interact
    rv = renpy.game.interface.interact(roll_forward=roll_forward, **kwargs)
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\display\core.py", line 3341, in interact
    self.start()
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\display\core.py", line 2267, in start
    self.set_mode()
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\display\core.py", line 2575, in set_mode
    if draw.init(virtual_size):
  File "gl2draw.pyx", line 296, in renpy.gl2.gl2draw.GL2Draw.init
  File "gl2draw.pyx", line 163, in renpy.gl2.gl2draw.GL2Draw.select_physical_size
  File "Z:\home\redacted\.local\share\Steam\steamapps\common\Slay the Princess\renpy\display\__init__.py", line 56, in get_info
    pygame.display.init()
  File "src/pygame_sdl2/display.pyx", line 95, in pygame_sdl2.display.init
error: wayland not available

Windows-10-10.0.19043 AMD64
Ren'Py 8.0.3.22090809
Slay the Princess 1.0
Tue Jan  2 18:22:06 2024