In case anyone is interested:
1. NERDTree has lost its core maintainer (https://github.com/preservim/nerdtree/issues/1280). I'm already traumatized with Atom sunsetting, so skipped.
2. Geany is not fitting my preference. No dark theme out of the box, also I can't just open project folder and start coding, it requires some special configuration for projects. Ewh.
3. Emacs is not like modern code editor with browser-like multitabs, but overall it's involving. I easily set dark theme, larger font and it allows doing many things with my mouse only unlike Vim+NERDTree. Will look into its depth forward, as DT said one needs around 6 months to get into Emacs.
4. Installed. Sublime is still good ol' Sublime, but fucking proprietary.