The short answer is The long answer involves fan-made passion projects, emulation breakthroughs, and native apps that have not only replicated the Flipnote magic but arguably surpassed it.
A: If you have a Snapdragon 8 Gen 2 or better, Citra MMJ runs Flipnote Studio 3D at full speed. However, the touch controls are worse than native apps. Only do this for the sound interface nostalgia. flipnote studio 3d android better
You are finally removing the leash.