You can reduce the animations even more by using the hidden 'developer' options.
The developer options is a hidden menu that gives you control over things that you normally don't need — or even want — to touch. But there are a few fun things to explore in there.
One of those things is reducing the animations even more than the standard animation reductions in the Galaxy S10's main settings.
To start with, head to the Settings menu of the Galaxy S10.
Set each scale option to "0.5x."
You can set the scales to "off" if you want, and there won't be any animations at all. Apps will open and close instantaneously. It'll make you realize how phone makers add animations purely for aesthetic effect.