You're right, but I also use codex at work to create Chrome extensions from scratch that automate processes.
I see the limitations and have encoutered them trying to develop more complex programs for work.
It's great for creating chrome extensions or scripts that help me tremendously at work. It's still not good enough to let me, a complete beginner, create an app for work that would replace a service my boss pays 100€ a month for. (For now at least, I haven't given up).
I'm also trying to develop a Deltarune like game on Godot using Codex, to see how far the tools currently go, I don't intend to publish o montetize it of course it's just a passion project among friends.
One year ago trying to use AI to setup Plex completely wrecked my mini-PC and I had to reset it, now it does everything by itself and I just supervise.
I wouldn't bet against it is all I'm saying.