Wothan

This occurs both with DX11 and DX12. Also other axis than rudder can cause this.

When I see this, I need to wigle my rudder pedals to make it go away. Seems to relate to control axis inputs.

They do exist, but their presence is rare. I think this is one of the issues on the buglist. Though real life airtraffic has become very low, it´s even lower in MSFS2020. But they do appear.

Only giving it a further week will not be enough. I have been a flight simmer for over 25 years and still has something to learn. It really takes time to learn the various aspects of flying. You must learn Aircraft systems, procedures, navigation, weather, VFR and IFR flying and a ton of terms. If You really want to learn about aviation - just hang on, search articles about navigation, buy or lend books about it, use Youtube (I did not have that option for the first half of my "carre'r"). Once You start getting to grips with it, it´s extremely rewarding, just don´t think that even a fraction can be learned within a couple of weeks. Hone Your skills and expect to make many mistakes, but that's what a simulator is for.

Like in FSX - press F2