Commerical pilot here. I would report any issues and inaccuracies I find via zendesk. These include flight model behavior / aerodynamics, mechanical behavior (front wheel steering on ground), systems behaviors.
Too many issues to list here.
I find the community mods / tweaks to improve some aircraft dramatically. I enjoy flying the modded DG40 and Bonanza. Hopefully, Asobo will make use of these community mods and integrate them eventually.
What I haven’t reported yet: with some normally aspirated piston engines, mixture control is too touchy. Usually, such engines, according to their manuals, are run at mix full rich up to 5000 ft density altitude at full throttle. There are more issues with the modelling of engines, both piston and turbine though.