Every app on macOS supports smooth scrolling. That’s why people use it. You’re using the lowest common denominator and going “wow everything is the same I can’t tell the difference”.
Only with hardware acceleration turned off. Which in my experience causes a stuttery and laggy experience which can hardly be described as "smooth".
If you really want to use MacOS's smooth scrolling, use MOS (https://mos.caldis.me) and get a beefy Mac because the base models will stutter like I mentioned.
I am very confused what you are talking about. You definitely do not need hardware acceleration to be disabled to get smooth scrolling. Something seems very broken with your setup?
If you really want to use MacOS's smooth scrolling, use MOS (https://mos.caldis.me) and get a beefy Mac because the base models will stutter like I mentioned.