import tkinter as tk
from itertools import cycle

root = tk.Tk()

# Any GIF should work
gif_path = r""

frames = []
for i in range(100):
    try:
        # Using PIL and ImageTk has no difference
        gif = tk.PhotoImage(file=gif_path, format=f'gif -index {i}') 
        frames.append(gif.subsample(1, 1).copy()) 
    except tk.TclError:
        break

label = tk.Label(root)
label.pack()

frame_cycle = cycle(frames)

def update_frame():
    frame = next(frame_cycle)
    label.config(image=frame)
    # Happens with other update times however more updates = faster memory leak
    root.after(1, update_frame)


root.after(0, update_frame)

root.mainloop()