So far the only way that this has been fixed is with a custom ROM (using their own custom launcher which is average at best) or using Lawnchair with QuickSwitch (requires root, and it is like the best shot you have to have smooth animations with a more customized launcher).
I have a similar question, how is that 3rd party launchers users do not know or not care about this?
I genuinely envy them lol.
I’m one such user. I notice the less smooth animations and the lack of App opening animations with them daily.
The reason I still use Smart Launcher is because of its amazing auto app categories, and smart search which is unrivaled by the system launcher.
Not to mention the aesthetics and blurred widgets.
I’m not sure why other Android OEMs are unable to fix this issue.
So far the only way that this has been fixed is with a custom ROM (using their own custom launcher which is average at best) or using Lawnchair with QuickSwitch (requires root, and it is like the best shot you have to have smooth animations with a more customized launcher).