The killer feature for me besides the lightweightness of Notepad++ is it's ability to remember what files were last opened and also "save" unsaved tabs.

I end up using it like a glorified sticky tool which I know windows did have at some point, but Notepad++ provides the same functionality with a much better experience.

Don't rely on it too much. Multiple times I had to manually reopen the files located in the backup folder of Notepad ++. Once an unsaved file was lost. By comparison, Obsidian automatically saves on each edit, but since Obsidian isn't raw and has formatting quirkiness, it absolutely isn't a replacement for N++.

That's pretty much a hard requirement if you use Windows 10 with it's update-reboot madness.

Yeah it's utterly useful. That said it needs some lazier redesign when files are on network shares, cause it will hang

??? EmEditor has this.

EmEditor is so much better than Notepad++ it's not even close.

Does it save unsaved files?

That’s a great feature, brings a lot of peace of mind.

Yes.