Works with Linux Mint 22.1 Cinnamon. It allowed me to remove the titlebar from video and image applications. It's not a gui but you can play with it by asking chatgpt if you don't know where to start: just beware to use debug_print to understand the correct window and/or application values to use.
There's no graphical interface for configuration, and you have to do a certain amount of tweaking to get it to do what you want. Also, there are things it *can't* do, like move particular browser windows that are opening to a particular site. All of that said, especially with the help of the tutorial at https://www.linux-magazine.com/Issues/2017/205/Tutorial-Devilspie2 I was able to get it working well for what I need it to do.