You mean Asp.net?
I don't use NVDA but here are some general tips.
1. I always disable line numbers, in settings, text editor, all languages. This helps with the speed of reading. You can always see your line number on the status bar if you need.
2. For work, I use Visual C 2005 keymap, since all the books on CSharp I read were using that keymap. It helps a lot in the debugger, since the default map doesn't have many keys assigned.
3. In VS 2022 you can enable audio cues. That will play a small sound when you arrow over an error, warning or a breakpoint.
4. You can use ALT f7 to navigate between various parts of the editor such as error list, text field, etc.
5. You can use ctrrl alt o to go to output window, its just basically a build log with all the errors listed. Keep in mind that you cannot press enter to go to a given error here.
Shall you have any more questions feel free to ask. I still like and work in .NET.