You are right. Chrome v111, which was released at Mar 2023, caused the kklisura/chrome-devtools-java-client does not work any longer. See their issues
This issue is still open, not resolved yet. Their latest release v4.0.0 kklisura/chrome-devtools-java-client was dated at May 2021, which is 2 years ago. They have released no updates since then.
The jar of Katalon’s Chrome DevTools Protocol integration includes the kklisura’s classes that are compiled dated at Nov-2019, possibly of v2.1.0 which is even older.
Therefore the plugin would no longer work with Chrome v111 and newer.
If anybody wants the Chrome DevTools Protocol Integration for Katalon Studio to revive, he/she should contribute to their issue so that the kklisura’s library can work with Chrome v111 and newers.
Once done, he/she can use the kklisura’s library directly. They can bring the upgraded jar into the Drivers folder, and their test case can call the native API of kklisura’s library. He/she does not have to wait for the Katalon’s plugin to be updated.
Selenium 4 has supported Chrome DevTools Protocol.
Therefore, I guess, there would not be many who demands the kklisura’s library any longer.
As far as I am aware, Katalon Studio is not going to move toward Selenium 4.
If you seriously demands Chrome DevTools Protocol for your testings, you should look at Playwright which works on CDP natively.