I'm not an IT professional or even expert. I've been using Geany for a decade, but recently I switched from a frugal setup to KDE Plasma, and decided that I want to use everything KDE has to offer as far as possible.
I've been using Kate for almost 3 months now, mostly for web development (Jinja), shell scripting and Markdown writing. It's been a good experience overall, but it seems to have one or two shortcomings compared to Geany, which makes me wonder how Kate fares in the landscape of Linux code editors/IDEs.
To give a concrete example, Geany has this great feature for HTML that automatically creates a closing tag once I finish the opening one. E.g. I type <div>, and as soon as I type the >, a closing </div> appears. Neat. That's more than just automatically closing brackets. I see no Kate plugin that would do that.
There've been a few more niggles, I'll edit the post - which I hope makes sense as a general question - when I remember them.
edit: Thanks for putting it all into perspective. Takeaways for me: 1) there's also kdevelop, 2) need to figure out what LSP is, and 3) regarding alternatives it's interesting to see which Archlinux has in its repositories and which are only AUR.
Good == you like it.
I don't like Kate personally. I use (and am addicted to) Sublime Text, but for an open source/free alternative I recommend Gram, or LiteXL. There's also one called Lapce that I thought was interesting, but I haven't looked into it in many years so idk if it's good yet.
For something more sublime-like, there's Cuda Text, but it's written in Pascal, an old/dying language, so it's at higher risk of abandonment because of a lack of contributors.