Good news! I figured out why the visibility and transparency layers weren’t updating properly. My Raspberry Pi uses OpenGL 3.1, and I believe that was causing the issue.
I was able to override it via the terminal to make it believe it support OpenGL 3.3 (even if it technically doesn’t), and that fixed everything! Visibility, opacity, and blending modes all work now. 😄
I also tried the different image effects.and it worked both without the OpenGL 3.3 support command and with it
Those were the command I used to make it work (only if the Application is launched via terminal):
export MESA_GL_VERSION_OVERRIDE=3.3
export MESA_GLSL_VERSION_OVERRIDE=330
Funny thing is that I was able to fix this by trying to launch blender the same way.