NP++ was good 20 years ago during a time with much weaker competition and it's been coasting on that good will ever since
It's OK for a text editor (compared to something totally basic like notepad) but other text editors have caught up in every single category
like you said, VS Code is now the default go to code editor for a lot of people. if you don't use VS Code, you use vim.
for non-coding uses, I don't see the functional difference between NP++ or something basic like Gnome's text editor