GIMP doesn't have "Patch tool", it doesn't have "Inpaint Brush" that is like content aware fill but brush, it doesn't have content aware fill either. I remember there were some plugins that provide features kinda similar to those tools but it was a huge pain to install and use them through nested filter menus. It's a great program for free open source, but it's decades behind on feature parity with other editors, and launch times long enough for me to prefer opening Photopea tab in browser instead