Also, gifview won't automatically center and resize the gif for you, some guy here made a script that centers the gif
https://ubuntuforums.org/showthread.php?t=926519but you'll probably have to resize it yourself if you need to, with gifsicle or something.
Using mpv is certainly less of a pain in the ass, and it shouldn't be a problem if you don't use some really old hardware or some old laptop with short battery life.
