As many free alternatives as there were before the rampant vibecoding, it seems that this growing collection of tools is not only functional, but a message to the large companies as well. Most of these apps are still far from what they intend to replace, however, so we'll have to see how deep this message cuts.
Blood in the water for Adobe. Acrobat is a steaming pile of garbage. My org worked with their engineering team to track down a bug that we reported. They affirmed the bug (app hangs on launch) and then took four to five months fixing it.
I've worked in software engineering. I know that debugging, patching, testing, verifying is difficult. But the enterprise license costs a lot and that was a very long time with a crippling bug. The only satisfactory answer (to me) is that they don't feel urgency because they are entrenched without real competition. They need to wake up.
(No, I don't think vibe-coded Acrobat replacements will unseat them. I think LLM-powered real devs will come for them because the moat is smaller.)