Darktable is open-source non-destructive photography software. Historically it was focused on Gnu/Linux and Apple MacOS system, but nowadays there is even official Windows executable. I like it despite using only fraction of its features (rotate, crop with fixed aspect ratio, scale, export). https://github.com/darktable-org/darktable/releases/tag/release-3.4.0 https://www.darktable.org/2020/12/darktable-3-4/ It may take some time until it hits repository of your favorite Gnu/Linux distribution. There is already Flatpak with v3.4 on Flathub. Snapcraft is still at 3.2.1 version.
