“Gimp is good but i miss the heal patch” …not really.

Resynthesize is a heal selection plugin you can add to Gimp. With many software store manager like the one from Linux Mint all you have to do is simply to add the additional components in the software page

Otherwise you can download it from github and add it to your plugin folder following this guide

https://www.arkthinker.com/edit-image/remove-the-watermark-with-gimp/

https://github.com/bootchk/resynthesizer

once installed you can find it in Filters> Enhance > Heal section

More Gimp plugins

https://beebom.com/best-gimp-plugins/

https://www.makeuseof.com/tag/install-gimp-plugins/

https://fixthephoto.com/gimp-plugins.html

https://daviesmediadesign.com/video-tutorials/gimp-2-10-tutorial-resynthesizer-better-photoshp-content-aware/