org.gimp.GIMP VS snapcraft

Depending on what exactly you use Photoshop for, you can try alternatives like Gimp, Darktable, or Krita.

You could install the flatpak https://flathub.org/apps/details/org.gimp.GIMP, which might limit it somewhat.

Flatpak: 2.10.30, 2021-Dec-26

Yes, and the Flatpak is officially maintained by Gimp developers.

No, you don't.

For anyone wanting to try alternatives, Gimp is great. There's also a project called PhotoGIMP that makes the layout more like photoshop if you want that.

Back in the day, I used snapd, which is similar to Mac's Homebrew.

Hopping from one distro to another with a different package manager might require some time to adapt. Using a package manager that can be installed on most distro is one way to help you get to work faster. Flatpak is one of them; other alternative are Snap, Nix or Homebrew. Flatpak is a good starter, and if you have a bunch of free time, I suggest trying Nix.

My personal favourite IDE for java is Intellej Idea. Apart from not demanding the extra extension, It was designed special for Java and Java related languages so it runs java smoothly with great compilation time. so lets install it. Make sure you have snap before installing it

Linux Mints App Store is full of GUI programs, Snap Store ist full of it, Flathub is full of it.

You are being lazy. But I recommend bringing your ass directly to snapcraft.io and reading those documents in the Learn section!!

https://github.com/snapcore/snapcraft - not sure, but looks like a building tools for snaps

Besides, there may be other ways to install them, although there doesn't seem no such Flatpak packages in Flathub. For example, some senerio to use some release channel or Docker / Podman. Additionally, when you use a different Linux distro where systemd is adopted and therefore can do Snaps (Snapd), you have another possibility.