

Then you have a bit more to do yeah, you should look into object oriented programming and classes. Classes are pretty much everywhere in C#. At the beginner level they aren’t as bad as they seem but you need to understand it’s basics. The guide I linked in another comment also has short introduction to using a class for example.
None of those issues for my main IDE, though Rider on some occasions do get stuck marking some spelling errors after they are fixed.
It has stuttered a few times, but pretty rare. But it does have a bug where it think it is building a project, but isn’t. And requires a restart to fix… Easy to trigger if you try building a project while it’s loading the project…
Visual Stuido with Resharper is the one where things would randomly stop working though. Especially hotkeys would sometimes stop working until I restarted it. Slow and stutter too.