So I tried running from manim import in the shell using my manim venv and got the following error:
/home/user/pyintspam/manim/lib/python3.11/site-packages/pydub/utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)
I am using a venv in the linux environment on a chromebook (crostini).