There are also two LSP plugins, here and here that offer semantic autocomplete, diagnostics, and more.

My lspclient and the aforementioned dap plugin are still marked as alpha versions. While this is probably more accurate for the dap plugin, the lsp plugin is actually relatively stable. The only thing that’s personally holding me back from upgrading this to a beta or even a 1.0 release is my code… which is… in need of improvement.
The only thing the dap plugin is really missing is the ability to handle structured variables like classes or structures. Currently, it only displays the variable itself, but not its fields. Otherwise, this plugin is more or less ready for use. If the language being used supports “repl” then it’s fully functional, though not yet very user-friendly.

Need NotePad++ to improve its print quality quickly. Can’t see anything I enter into NotePad++.

Printing works just fine for me. What do you mean by “Can’t see anything”. Does that mean it prints a white text on a white page? Or light gray text on a white page? Or black text on a black background? Or that it’s too small? Or that you’ve picked an ugly font? Or what?

What are your Settings > Preferences > Print settings, especially in the Color Options radio buttons? Because if you have Notepad++ in Dark Mode and/or one of the many dark themes (where it has light text on a dark background), then if you ahve chosen ☑ No background color (which I think is the default), then it will use your theme’s light foreground color but not print any background color, which won’t give good contrast. If you have a dark theme, it’s usually best to choose ☑ Invert or ☑ Black on White if you’re printing to paper. (If you’re printing to PDF, that will never use any ink, then ☑ WYSIWYG 🛈 is probably what you want.) But as with any program, you need to pick your print options to match your desired output.

NotePad++ is also not a very useful code editor as you have to set up compiler and linker settings to get it to work.

Name one “code editor” where you don’t have to. Even Visual Studio Code, you have to do setup to get it integrated with your compiler/linker; and even the full-blown Visual Studio, the IDE made for coding, you have to install the compiler/linker/etc, and do all your library choices, etc, when you install it. You always have to set such things up to one extent or another; and for any Editor/IDE that doesn’t come bundled with the compiler/linker/interpreter that you care about, you’re definitely going to have to tell it where such things are.

The extensions that can be downloaded don’t seem to have much functionality.

Depends on what the functionality is that you want, and which extension (technically, “plugin”) you are talking about. Vague assertions are hard to discuss.

I have also dumped Visual Studio (2026), told MS about it, and replaced it with the Eclipse Foundation IDE - with support for Web development, Java & Spring + UI, C/C++, Python, Golang and a legacy Haskell extension.

Note that “IDE” is a lot more than “Code Editor”. You get what you choose. VS and Eclipse are full IDE. Notepad++ is meant as a “Code Editor”, but with the right plugins, can come pretty close to an IDE. @ekopalypse just recently announced his DAP client plugin, which gives access to the modern DAP interface for debugging environments, and it would very much surprise me if it didn’t work with your compiler/linker, if you’ve got anything modern.

Maybe if you gave specifics, rather than general assertions, there could be a more meaningful discussion.