https://www.johnvansickle.com/ffmpeg/
here are old releases
https://www.johnvansickle.com/ffmpeg/old-releases/
wget https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -O /usr/local/bin/yt-dlp && chmod a+rx /usr/local/bin/yt-dlp
https://www.johnvansickle.com/ffmpeg/old-releases/ffmpeg-4.3.1-amd64-static.tar.xz \
&& tar xvf ffmpeg-4.3.1-amd64-static.tar.xz \
&& sudo mv ffmpeg-4.3.1-amd64-static/ffmpeg ffmpeg-4.3.1-amd64-static/ffprobe /usr/local/bin/