Software
This serves as both a collection of (free) software I use and a way to convince you (yes, you!) to use that (free) software.
"Free software" means software that respects users' freedom and community. Roughly, it means that the users have the freedom to run, copy, distribute, study, change and improve the software. Thus, "free software" is a matter of liberty, not price. To understand the concept, you should think of "free" as in "free speech," not as in "free beer". We sometimes call it "libre software," borrowing the French or Spanish word for "free" as in freedom, to show we do not mean the software is gratis.
— The Free Software Foundation
GNU Emacs

"People don't just quit emacs. They just die at some point." GNU Emacs is an extensible, customizable, free/libre text editor.
KDE Kate
KDE Kate is my cross-platform go to "VS Code". It's a fast multi-view text editor by KDE. It features many things that VS Code would while being native Qt and not an entire Chromium web browser.
Mozilla Firefox
Mozilla Firefox is a free and open-source web browser developed by the Mozilla Foundation. The opinion on Firefox can be mixed, but in my own opinion... I think it's fine for now. It's the only non-Chromium web browser (and don't say Brave... that's also just Chromium) that I can tolerate.
Of course, if things with Mozilla or packaging of Firefox changes then my next go to would be LibreWolf, a custom version of Firefox focused on privacy.
KDE Krita
KDE Krita is another free project by the KDE project. It's an art program that's cross platform and easy to learn. I argue (while not being a very good artist) that Krita is an excellent alternative to Adobe, Clip Studio Paint, or PaintTool Sai.
Fedora Linux (with KDE Plasma)

Prior to using Fedora, Debian had been my daily driver on my laptop and desktop since almost 2014. I switched to Fedora midway through university when I got my ThinkPad T480s for the out-of-box experience... things just worked and I got used to DNF pretty quickly. When I also upgraded my desktop PC around the same time, I decided to start fresh with Fedora on that too (and of course with KDE Plasma). It's worked great for me since.