Your speaking to someone that has been playing this game since beta. These are basics learned quickly. Trust me, I can tell when my movement has changed. If it hasn't for you - great, consider your self lucky.
My steps for smooth proper slide have increased from the basic. Just like my aim assist on PS4 controller has also recently changed.
Again, this doesn't happen all the time like the aim issue - but more and more often. Never in the last three years have these ever happened to me. Now - consistent.
And seeing as how I am not the only person who has mentioned this and that there are multiple threads on them...goes to show that it is happening to some.
But don't worry, you don't have to say it - I'll just "get good."
: )